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Homonyms

IRMNG homonym list - genus level - Initial letter = "T" (1925)

Please note, this is a provisional homonyms list from IRMNG on 2024-03-29, and is subject to change. It may include nomina nuda, rejected and otherwise non-current names, plus some published misspellings, in addition to homonyms that have been validly published. A small proportion of duplicate entries awaiting rationalisation may also be included.

Click on any genus name for additional details, as currently available.

Tabacum
 Tabacum F.M. Opiz in F. Berchtold & F.M. Opiz, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)
 Tabacum Gilibert, 1781 accepted as Nicotiana Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Tabellina
     Tabellina Waterhouse, 1986 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ingelarellidae (Family)
     Tabellina V.S. Maljavkina, 1949 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Taboga
     Taboga Dyar, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Taboga de Laubenfels, 1936 accepted as Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tabularia
 Tabularia Lendenfeld, 1884 † accepted as Tubularia Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tubulariidae (Family)
     Tabularia (F.T. Kützing) D.M. Williams & F.E. Round, 1986 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Licmophorales (Order) > Ulnariaceae (Family)
     Tabularia Soshkina, 1937 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Amplexoididae (Family)

Tachaea
     Tachaea Schioedte & Meinert, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Corallanidae (Family)
 Tachaea Leach, 1847 accepted as Tachea Turton, 1831 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Tachea
 Tachea Fleming, 1822 accepted as Dromaius Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Casuariiformes (Order) > Casuariidae (Family)
 Tachea Turton, 1831 accepted as Cepaea Held, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Tachia
 Tachia Blanford, 1863 accepted as Tachia Blanford, 1863 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)
     Tachia Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Tachia Persoon, 1805 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tachinoestrus
     Tachinoestrus Portschinsky, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Tachinoestrus Grünberg, 1906 accepted as Anthophasia Speiser, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachiniscidae (Family)

Tachinopsis
 Tachinopsis Fauvel, 1899 accepted as Ioma Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tachinopsis Coquillett, 1897 accepted as Chetogena Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Tachinus
     Tachinus Gravenhorst, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tachinus Gozis, 1886 accepted as Bolitobius Samouelle, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tachopteryx
     Tachopteryx Selys, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Petaluridae (Family)
     Tachopteryx Uhler, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Petaluridae (Family)

Tachus
 Tachus Jurine, 1807 accepted as Meria Illiger, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
 Tachus Sørensen, 1932 accepted as Tachusina Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)

Tachybates
     Tachybates Guérin-Méneville, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Tachybates Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tachycellus
     Tachycellus Ganglbauer, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachycellus Morawitz, 1863 accepted as Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachycellus Horn, 1881-1882 accepted as Bradycellus Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachycineta
     Tachycineta Cabanis, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)
     Tachycineta Brodkorb, 1957 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeriformes (awaiting allocation) (Family)

Tachycnemis
     Tachycnemis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hyperoliidae (Family)
     Tachycnemis Bonvouloir, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Tachydroma
 Tachydroma Des Murs in Chenu, 1853 accepted as Tichodroma Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sittidae (Family)
 Tachydroma Waltl, 1837 accepted as Tachydromia Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Tachydromus
     Tachydromus Illiger, 1811 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Tachydromus Daudin, 1802 accepted as Takydromus Daudin, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)
 Tachydromus Oppel, 1811 accepted as Takydromus Daudin, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)

Tachydromyia
 Tachydromyia Macquart, 1823 accepted as Tachydromia Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)
 Tachydromyia Bigot, 1889 accepted as Tachydromia Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Tachygonus
     Tachygonus Schönherr, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tachygonus Drake, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Gerridae (Family)
     Tachygonus Guerin-Meneville, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tachymenis
     Tachymenis Wiegmann, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Tachymenis Motschoulsky, 1862 accepted as Mioptachys Bates, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachynectes
     Tachynectes Marck, 1863 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Elopiformes (Order) > Elopiformes (awaiting allocation) (Family)
     Tachynectes Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Tachyophis
     Tachyophis Rochebrune, 1884 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tachyophis Mertens, 1934 accepted as Tachyophis Mertens, 1934 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tachypetes
     Tachypetes Vieillot, 1816 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tachypetes Chevrolat in Dejean, 1836 accepted as Gynandrophthalma Lacordaire, 1848 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Tachyptera
     Tachyptera Dahlbom, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tachyptera Barnes & McDunnough, 1911 accepted as Eutachyptera Barnes & MacDunnough, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
 Tachyptera Berge, 1842 accepted as Pieris Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Tachypterus
 Tachypterus Dietz, 1891 accepted as Anthonomus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tachypterus Guérin-Méneville, 1838 accepted as Diamma Westwood, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)

Tachypus
     Tachypus Stephens, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachypus Dejean, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachypus Weber, 1801 accepted as Carabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachypus Dejean, 1821 accepted as Asaphidion Des Gozis, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachys
 Tachys Schoenherr, 1806 accepted as Bembidion Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachys Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tachys Stephens, 1828 accepted as Tachys Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tachys Melsheimer, 1806 accepted as Tachys Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tachytrechus
     Tachytrechus Haliday in Walker, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Tachytrechus Stannius, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Tachyusa
     Tachyusa Erichson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tachyusa Szépligeti, 1903 accepted as Tachyusa Szépligeti, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Taczanowskia
     Taczanowskia Keyserling, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
     Taczanowskia Sztolcman, 1926 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tadorna
     Tadorna Boie, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)
     Tadorna Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Anseriformes (Order) > Anatidae (Family)

Tadzhikistania
     Tadzhikistania Bogacev, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tadzhikistania Barnard & Barnard, 1983 accepted as Barnardiorum Iwan & Löbl, 2007 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Gammaridae (Family)

Taenia
     Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Taenia Pallas, 1766 accepted as Taenia Pallas, 1766 · Animalia (Kingdom) > Acanthocephala (Phylum) > Archiacanthocephala (Class) > Oligacanthorhynchida (Order) > Oligacanthorhynchidae (Family)
 Taenia Walker, 1866 accepted as Taenia Walker, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Taenia Artedi in Röse, 1793 accepted as Cepola Linnaeus, 1764 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cepolidae (Family)
     Taenia (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Porocephalida (Order) > Linguatulidae (Family)
 Taenia Stebnicka, 2003 accepted as Tanyana Stebnicka, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Taenidia
     Taenidia (J. Torrey & A. Gray) Drude in Engler & Prantl, 1898 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Taenidia Rivalier, 1950 accepted as Cephalota Dokhturov, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Taenidium
     Taenidium G. Targioni Tozzetti, 1826 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Potamogetonaceae (Family)
     Taenidium O. Heer, 1877 † · Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)

Taeniocerus
     Taeniocerus Kaup, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passalidae (Family)
     Taeniocerus Dlabola, 1974 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Taeniocerus Blandford, 1893 accepted as Strophionocerus Sampson, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Taeniodon
     Taeniodon Dunker, 1848 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Taeniodon Döderlein in Steindachner & Döderlein, 1883 accepted as Liopropoma Gill, 1861 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Serranidae (Family)

Taeniodus
     Taeniodus Gervais, 1859 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Theridomyidae (Family)
     Taeniodus St. John & Worthen, 1883 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Taeniola
     Taeniola Dall, 1904 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Taeniola R.A. Salisbury, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Taeniola Pallas, 1760 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Taeniola Bonorden, 1851 accepted as Torula Persoon, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Torulaceae (Family)

Taenioma
     Taenioma J.G. Agardh, 1863 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)
 Taenioma Amyot, 1846 accepted as Taenioma Amyot, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Taenionema
     Taenionema Banks, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Taeniopterygidae (Family)
     Taenionema Bolivar, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)
 Taenionema Eigenmann & Bean, 1907 accepted as Brachyplatystoma Bleeker, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Pimelodidae (Family)

Taenionotus
     Taenionotus Haupt, 1950 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Taenionotus Oken, 1816 accepted as Taenionotus Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Taenionotus Swainson, 1839 accepted as Taenianotus Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
 Taenionotus Agassiz, 1846 accepted as Taenianotus Lacepède, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)

Taeniophis
     Taeniophis Girard, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Taeniophis Kaup, 1859 accepted as Gymnothorax Bloch, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Muraenidae (Family)

Taeniophora
     Taeniophora Stål, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
 Taeniophora P.A. Karsten, 1886 accepted as Phragmotrichum G. Kunze, 1823 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Taeniophora K.W. Klement, 1960 † accepted as Palaeotaeniophora E.A. Molinari-Novoa & M.D. Guiry, 2021 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)

Taeniophorus
     Taeniophorus Linnavuori, 1952 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Taeniophorus Bertelsen & Marshall, 1956 accepted as Eutaeniophorus Bertelsen & Marshall, 1958 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cetomimiformes (Order) > Cetomimidae (Family)

Taeniophyllum
 Taeniophyllum Lesquereux, 1878 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Taeniophyllum Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Taeniophyllum Pomel, 1849 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Cycadales (awaiting allocation) (Family)

Taenioptera
     Taenioptera Bonaparte, 1830 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Taenioptera Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Micropezidae (Family)

Taeniopteris
 Taeniopteris W.J. Hooker, 1841 accepted as Vittaria Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)
     Taeniopteris A.T. Brongniart, 1828 † · Plantae (Kingdom) > Tracheophyta (Phylum) > (Class) > (Order) > (Family)

Taeniopteryx
     Taeniopteryx Pictet, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Taeniopterygidae (Family)
 Taeniopteryx Janse, 1920 accepted as Metopteryx Fletcher in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Taeniosoma
     Taeniosoma Bolivar, 1897 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)
     Taeniosoma Stimpson, 1857 · Animalia (Kingdom) > Nemertea (Phylum) > Anopla (Class) > Heteronemertea (Order) > Valenciniidae (Family)

Taeniostola
     Taeniostola Bezzi, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Taeniostola Meyrick, 1920 accepted as Taeniostolella Fletcher, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)

Taenioxylon
     Taenioxylon Felix, 1882 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Taenioxylon L. Crié, 1889 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Taeniura
     Taeniura Gregory, 1897 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Taeniura Müller & Henle, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)

Taenophthalmus
 Taenophthalmus Günther & Zumpt, 1933 accepted as Tainophthalmus Desbrochers, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Taenophthalmus Winkler, 1932 accepted as Tainophthalmus Desbrochers, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tafalla
     Tafalla Walker, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tafalla D. Don, 1831 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tafalla Ruiz & Pavon, 1794 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Chloranthales (Order) > Chloranthaceae (Family)

Taffia
     Taffia Butts, 1926 † accepted as Taffia Butts, 1926 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Taffiidae (Family)
     Taffia Ulrich, 1926 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Strophomenatida (Order) > Taffiidae (Family)

Tagalus
 Tagalus P. Fischer, 1887 accepted as Tagelus Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Solecurtidae (Family)
     Tagalus Gebien, 1914 accepted as Dioedus Leconte, 1862 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tagassu
 Tagassu Simpson, 1929 accepted as Tayassu Fischer, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tayassuidae (Family)
 Tagassu von Frisch, 1775 accepted as Pecari Reichenbach, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tayassuidae (Family)

Tagoria
 Tagoria Schenkel, 1963 accepted as Synagelides Strand, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Tagoria Yakovlev & Zolotuhin, 2021 accepted as Tagoriana Rivaz Hernández & Deshmukh, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Metarbelidae (Family)

Tahitia
     Tahitia Coiffait, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tahitia Adams & Angas, 1865 accepted as Tahitia Adams & Angas, 1865 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)
 Tahitia Burret, 1926 accepted as Christiana A.P. de Candolle, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Taieria
     Taieria Forster in Forster & Blest, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Gnaphosidae (Family)
 Taieria Finlay & Marwick, 1937 † accepted as Galeodea Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cassidae (Family)

Taihangshania
     Taihangshania Young, 1979 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Synapsida (awaiting allocation) (Order) > Synapsida (awaiting allocation) (Family)
     Taihangshania Zhang & Wang, 1985 † accepted as Taihangshaniashania Jell in Jell & Adrain, 2003 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Dorypygellidae (Family)

Taimyria
     Taimyria Lyutkevich, 1951 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphoida (awaiting allocation) (Family)
     Taimyria V.A. Chachlov in L.L. Khalfin, 1964 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Taimyria S.V. Naugolnykh & N.K. Mogutcheva, 2022 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Peltaspermales (Order) > Angaropeltaceae (Family)

Taimyrites
     Taimyrites Vavilov & Arkadiev in Vavilov & Arkadev, 1986 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Taimyrites Novojilov, 1958 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Branchiopoda (awaiting allocation) (Order) > Branchiopoda (awaiting allocation) (Family)

Tainiopsis
     Tainiopsis B. Hayata, 1914 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tainiopsis Schlechter, 1915 accepted as Eriodes Rolfe, 1915 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tainocarychium
     Tainocarychium Schutt, 1988 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Tainocarychium Schutt & Velitzelos, 1991 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Tairona
     Tairona Hebard, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
     Tairona Righi, 1984 accepted as Taironina James & Brown, 2023 (junior homonym)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Crassiclitellata (Order) > Rhinodrilidae (Family)

Taiwanella
     Taiwanella Huang, 2000 † (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Foraminifera (awaiting allocation) (Class) > (Order) > (Family)
     Taiwanella Takakuwa, 1936 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Mecistocephalidae (Family)

Taiwania
     Taiwania Hayata, 1906 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Cupressaceae (Family)
 Taiwania Spaeth, 1913 accepted as Cassida Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Taiwania Tsuneki, 1989 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pompilidae (Family)

Takagia
     Takagia Tang, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
     Takagia Matsumura, 1942 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Takagia Negrobov, 1973 accepted as Sphyrotarsus Mik, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Takahashia
     Takahashia Cockerell, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coccidae (Family)
     Takahashia Matsumoto, 1984 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Tetragonitidae (Family)
 Takahashia Ananthakrishnan, 1970 accepted as Leeuwenia Karny, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Takahashiella
     Takahashiella Borkhsenius, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
     Takahashiella Cooper, 2012 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Lytoceratidae (Family)

Takakia
     Takakia Yeates, 1967 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripylida (Order) > Prismatolaimidae (Family)
     Takakia Hattori & Inoue, 1958 · Plantae (Kingdom) > Bryophyta (Phylum) > Takakiopsida (Class) > Takakiales (Order) > Takakiaceae (Family)

Takanoa
     Takanoa I.V. Makarova, 1994 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Thalassiosirales (Order) > Thalassiosiraceae (Family)
     Takanoa Rodendorf, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Takashia
 Takashia Bernard, 1989 accepted as Pendaloma Iredale, 1930 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Periplomatidae (Family)
 Takashia Okano & Okano, 1985 accepted as Polycaena Staudinger, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Taklamakania
     Taklamakania Zhang, 1979 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
     Taklamakania Ferrer & Yvinec, 2004 accepted as Taclamacanius Ferrer & Yvinec, 2005 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tala
     Tala Blanco, 1845 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Tala Malaise, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
 Tala Sama, 2005 accepted as Kabylophytoecia Sama, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Talaepora
 Talaepora Fairmaire & Germain, 1860 accepted as Taloepora Fairmaire & Germain, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Talaepora Dejean, 1835 accepted as Taloepora Fairmaire & Germain, 1860 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Talanus
     Talanus Dejean, 1834 accepted as Talanus Jacquelin in Ramon de la Sagra, 1857 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Talanus Mäklin, 1878 accepted as Talanus Jacquelin in Ramon de la Sagra, 1857 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Talanus Jacquelin in Ramon de la Sagra, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Talassia
     Talassia Warén & Bouchet, 1988 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vanikoridae (Family)
 Talassia E.P. Korovin, 1962 accepted as Ferula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Talaus
     Talaus Simon, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)
 Talaus Moreira, 1913 accepted as Dipteropeltis Calman, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Arguloida (Order) > Argulidae (Family)

Talbotia
 Talbotia S. Moore, 1913 accepted as Afrofittonia Lindau, 1913 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
     Talbotia Bernardi, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)
     Talbotia Balfour, 1868 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Pandanales (Order) > Velloziaceae (Family)

Talima
     Talima Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)
 Talima Heller, 1932 accepted as Talimanus Marshall, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Talitha
     Talitha Faure, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
 Talitha Clarke, 1978 accepted as Hozbeka Özdikmen, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Depressariidae (Family)

Talitropsis
     Talitropsis Bolivar, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
     Talitropsis Burt, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Talona
     Talona Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Pholadidae (Family)
     Talona Gray, 1840 accepted as Talona Gray, 1842 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Pholadidae (Family)

Talopia
     Talopia Gray, 1840 accepted as Talopia Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Talopia Gray, 1842 accepted as Monilea Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)

Talpacarus
 Talpacarus Grandjean, 1939 accepted as Torpacarus Grandjean, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Lohmanniidae (Family)
 Talpacarus Zachvatkin, 1941 accepted as Labidophorus Kramer, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Glycyphagidae (Family)

Talpasorex
 Talpasorex Lesson, 1827 accepted as Scalopus Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Soricomorpha (Order) > Talpidae (Family)
 Talpasorex Schinz in Cuvier, 1821 accepted as Condylura Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Soricomorpha (Order) > Talpidae (Family)

Talpina
 Talpina Dahms & Pottek, 1992 accepted as Dahmsopottekina Özdikmen, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)
     Talpina Hagenow, 1840 † · Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > Talpinidae (Family)

Talus
     Talus Haas, 1968 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Talus Gistl, 1848 accepted as Ptychodes Audinet-Serville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tamandua
     Tamandua Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Myrmecophagidae (Family)
     Tamandua Rafinesque, 1815 accepted as Tamandua Gray, 1825 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Myrmecophagidae (Family)

Tamania
     Tamania J. Cuatrecasas, 1976 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tamania Pyrcz, 1995 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Tamanukia
     Tamanukia Baranov, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Tamanukia Hayashi, 1960 accepted as Robustanoplodera · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tamarella
     Tamarella M.A. Senkevitsch in V.N. Dubatolov & G.A. Stukalina, 1991 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Spongiophytaceae (Family)
     Tamarella Owen, 1965 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Laqueidae (Family)

Tamayoa
     Tamayoa Baker, 1925 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Scolodontidae (Family)
     Tamayoa Badillo, 1944 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Tambusa
     Tambusa Distant, 1908 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tambusa Distant, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tamerlania
     Tamerlania Skrjabin, 1924 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Eucotylidae (Family)
     Tamerlania Paramonov, 1931 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Tamia
 Tamia P. Ravenna, 2001 accepted as Calydorea Herbert, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tamia Lesson, 1827 accepted as Tamias Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)

Tamnophilus
 Tamnophilus Vieillot, 1816 accepted as Thamnophilus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Thamnophilidae (Family)
 Tamnophilus Germar, 1829 accepted as Magdalis Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tamonea
     Tamonea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
 Tamonea Aublet ex F. Krasser in Engler & Prantl, 1893 accepted as Miconia Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Tana
     Tana B.-E. van Wyk, 1999 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Tana Reed, 1888 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
 Tana Lyon, 1913 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Scandentia (Order) > Tupaiidae (Family)

Tanagra
 Tanagra Linnaeus, 1764 accepted as Tanagra Linnaeus, 1764 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Emberizidae (Family)
 Tanagra Duponchel in Godart, 1829 accepted as Odezia Boisduval, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Tanagrella
     Tanagrella Swainson, 1837, nom. nud. accepted as Tanagrella Swainson, 1837, nom. nud. (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Tanagrella Swainson, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Tanais
     Tanais H. Milne Edwards, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Tanaididae (Family)
     Tanais Latreille, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Tanaidacea (Order) > Tanaididae (Family)

Tanaodon
     Tanaodon Simpson, 1927 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dryolestida (Order) > Paurodontidae (Family)
     Tanaodon Kirk, 1927 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Anomalodesmacea (awaiting allocation) (Family)

Tanarus
     Tanarus Hustache, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tanarus Labram & Imhoff, 1843 accepted as Tanaos Schönherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Tancrea
     Tancrea Püngeler, 1898 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tancrea F. Stockmans, 1948 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Protolepidodendrales (Order) > Sublepidodendraceae (Family)

Tandonella
     Tandonella Jain, 1978 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Tandonella S.S. Prasad & R.A.B. Verma, 1970 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)

Tandonia
     Tandonia Lessona & Pollonera, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Milacidae (Family)
 Tandonia Moquin-Tandon in Alph. de Candolle, 1849 accepted as Anredera A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Basellaceae (Family)
 Tandonia Baillon, 1861 accepted as Tannodia Baillon, 1861 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tandonia M.D. Mehrotra, 1991 accepted as Tandonea M.D. Mehrotra, 1991 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tangana
     Tangana Ramme, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Tangana Davies, 2003 accepted as Tanganoides Davies, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Desidae (Family)

Tangaroa
     Tangaroa Marcus, 1952 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Solenopharyngidae (Family)
 Tangaroa Bell & Bell, 1978 accepted as Tangarona Bell & Bell, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhysodidae (Family)
     Tangaroa Lehtinen, 1967 accepted as Lehtineniana Sherwood, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Uloboridae (Family)

Tangia
     Tangia Stål, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
 Tangia Chan, 1970 accepted as Lipocheilus Anderson, Talwar & Johnson, 1977 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)

Tangiopsis
     Tangiopsis Uhler, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)
     Tangiopsis Melichar, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
     Tangiopsis Skrjabin & Guschanskaja, 1955 accepted as Tangenarchopsis Urabe & Nakano, 2018 (junior homonym)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Derogenidae (Family)

Tangshihella
     Tangshihella Hupé, 1955 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tangshihella Hupé in Piveteau, 1953 † accepted as Bailiella Matthew, 1885 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Conocoryphidae (Family)

Tania
     Tania J.M. Egea, P. Torrente & H. Sipman in J.M. Egea et al., 1995 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Arthoniaceae (Family)
     Tania Gray, 1842 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tania Gray, 1840 accepted as Tania Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tania Matsumaru, 1990 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Taniaspidella
     Taniaspidella † accepted as Taniaspidella † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Taniaspidella Semashko, 1971 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tanichthys
     Tanichthys Lin, 1932 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Tanichthys Jin, 1991 † accepted as Tanolepis Jin, 1994 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osteoglossiformes (Order) > Hiodontidae (Family)

Taniella
     Taniella Finlay & Marwick, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Naticidae (Family)
 Taniella Kase, 1990 † accepted as Tanimasanoria Kase, 1992 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Tanna
     Tanna Berland, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Tanna Distant, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Tanousia
     Tanousia Servain, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)
     Tanousia Bourguignat, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Tantalides
     Tantalides Reichenbach, 1852 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Tantalides Wagler, 1832 accepted as Plegadis Kaup, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Threskiornithidae (Family)

Tantillus
     Tantillus Chaudoir, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tantillus C.J. Felix & P.P. Burbridge, 1967 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tantunia
     Tantunia † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Tantunia Kollmann, 2005 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ficidae (Family)

Tanyglossa
     Tanyglossa Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tabanidae (Family)
     Tanyglossa Duda, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Drosophilidae (Family)

Tanygnathus
     Tanygnathus Wagler, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
 Tanygnathus Erichson, 1839 accepted as Atanygnathus Jacobson, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tanygnathus Erichson, 1837 accepted as Atanygnathus Jacobson, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tanymecus
     Tanymecus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tanymecus Thomson, 1859 accepted as Tanymecus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tanypleurus
     Tanypleurus Steenstrup & Lütken, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Tanypleuridae (Family)
 Tanypleurus Raffray, 1890 accepted as Natypleurus Newton & Thayer, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tanyptera
     Tanyptera Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
 Tanyptera Mabille, 1877 accepted as Pteroteinon Watson, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Tanypus
     Tanypus Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
 Tanypus Oppel, 1812 accepted as Grallina Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)
 Tanypus Keyserling in Koch (Keyserling), 1882 accepted as Margaromma Keyserling in Koch (Keyserling), 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Tanyrhinus
     Tanyrhinus Mannerheim, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tanyrhinus Farran, 1936 accepted as Teneriforma Grice & Hulsemann, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Spinocalanidae (Family)

Tanysphyra
     Tanysphyra Berendt, 1845 accepted as Tanysphyra Berendt, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tanysphyra Loew, 1850 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)

Tanystola
     Tanystola Turner, 1922 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tanystola Motschoulsky, 1850 accepted as Tanystoma Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tanystoma
     Tanystoma Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tanystoma Reitter, 1907 accepted as Sericoda Kirby, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tanystoma Benson, 1856 accepted as Hypselostoma Benson, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hypselostomatidae (Family)

Tanystomium
     Tanystomium Berger, 1994 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)
     Tanystomium Berger, 1979 accepted as Tanystomium Berger, 1979 (nomen nudum)· Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)
     Tanystomium Berger, 1964 (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Cryptochilidae (Family)

Tanzaniella
     Tanzaniella Lupu, 1979 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Neritidae (Family)
     Tanzaniella Hoffman, 1977 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Chelodesmidae (Family)
 Tanzaniella Gillies, 1991 accepted as Tanzaniops McCafferty & Barber-James, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)

Taonurus
     Taonurus Fischer-Ooster, 1858 † · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Taonurus Fischer-Ooster, 1857 † accepted as Taonurus Fischer-Ooster, 1857 † (nomen nudum)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Taonurus Saporta & Marion, 1881 † · Animalia (Kingdom) > Annelida (Phylum) > (Class) > (Order) > (Family)

Tapada
     Tapada Studer, 1820 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Succineidae (Family)
     Tapada Gray in Turton, 1840 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Tapaia
 Tapaia Oken, 1816 accepted as Tapaia Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Phrynosomatidae (Family)
 Tapaia Gray, 1860 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Scandentia (Order) > Tupaiidae (Family)
 Tapaia Burnett, 1830 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Scandentia (Order) > Tupaiidae (Family)

Tapeina
     Tapeina Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tapeina Hedwig, 1806 accepted as Tapeinia Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tapeina Brunner von Wattenwyl, 1878 accepted as Tapiena Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Tapeinanthus
 Tapeinanthus Boissier ex Bentham in Alph. de Candolle, 1848 accepted as Thuspeinanta T. Durand, 1888 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Tapeinanthus Herbert, 1837 accepted as Narcissus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Tapeinia
     Tapeinia Commerson ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tapeinia F.G. Dietrich, 1823 accepted as Tritonia Ker-Gawler, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tapeinotus
     Tapeinotus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tapeinotus Schönherr, 1825 accepted as Tapeinotus Schoenherr, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tapera
     Tapera Thunberg, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cuculiformes (Order) > Neomorphidae (Family)
     Tapera Bonaparte, 1857 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)

Taperinha
     Taperinha Lane, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Taperinha Linnavuori, 1959 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tapesia
     Tapesia (Persoon) Fuckel, 1870 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Tapesia Bolivar, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)
     Tapesia C.F. Gaertner accepted as Tepesia C.F. Gaertner, 1806 (misspelling)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Taphius
     Taphius Adams, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)
 Taphius Jacoby, 1897 accepted as Pathius Aslam, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Taphius Rafinesque, 1815 accepted as Taphius Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Taphozous
     Taphozous É. Geoffroy Saint-Hilaire, 1818 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Emballonuridae (Family)
 Taphozous Oken, 1816 accepted as Taphozous Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Taphria
 Taphria E.M. Fries, 1821 accepted as Taphrina E.M. Fries, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Taphrinomycetes (Class) > Taphrinales (Order) > Taphrinaceae (Family)
 Taphria Dejean, 1821 accepted as Synuchus Gyllenhal, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Taphria Dejean, 1828 accepted as Taphria Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Taphroderes
     Taphroderes Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Taphroderes Schoenherr, 1833 † accepted as Taphroderopsis Scivittaro, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Taphroderes Wolfrum, 1929 accepted as Taphrodes Jordan, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Taphrognathus
     Taphrognathus Branson & Mehl, 1940 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodonta (awaiting allocation) (Order) > (Family)
     Taphrognathus Welles, 1947 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Temnospondyli (Order) > Plagiosauridae (Family)

Taphrophila
     Taphrophila C. Scheuer, 1988 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Tubeufiales (Order) > Tubeufiaceae (Family)
     Taphrophila Rondani, 1856 accepted as Taphrophila Rondani, 1856 (taxon inquirendum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)

Taphrospira
     Taphrospira Blanford, 1905 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Ariophantidae (Family)
     Taphrospira Skuja, 1948 accepted as Taphrospira Skuja, 1948 (nomen dubium)· Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)

Taphrostethus
 Taphrostethus Fieber, 1844 accepted as Cantacader Amyot & Serville, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tingidae (Family)
 Taphrostethus Schaufuss, 1882 accepted as Stethotaphrus Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tapia
     Tapia Belogurov & Fadeeva, 1985 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Ironida (Order) > Leptosomatidae (Family)
     Tapia P. Miller, 1754 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)

Tapina
     Tapina Dalman in Billberg, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tapina C.F.P. Martius, 1829 accepted as Sinningia C.G.D. Nees, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Tapina Laporte, 1833 accepted as Euryphagus Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tapina Gemminger & Harold, 1873 accepted as Tapeina Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tapinella
     Tapinella E.-J. Gilbert, 1931 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Tapinellaceae (Family)
     Tapinella Enderlein, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Pachytroctidae (Family)

Tapinopsis
 Tapinopsis Blanchard in Gay, 1851 accepted as Strangaliodes Schönherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tapinopsis Agassiz, 1846 accepted as Tapenopsis Solier, 1844 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tapinopsis Gemminger & Harold, 1870 accepted as Tapinopsis Agassiz, 1846 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tapinopus
     Tapinopus Milne-Edwards, 1892 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cathartiformes (Order) > Cathartidae (Family)
     Tapinopus Saussure, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Tapinostethus
     Tapinostethus Faust, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Tapinostethus Csiki, 1936 accepted as Tapinostethus Faust, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Tapirotherium
     Tapirotherium Lartet in Bronn, 1848 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Suidae (Family)
 Tapirotherium Blainville, 1817 † accepted as Lophiodon Cuvier, 1822 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Lophiodontidae (Family)

Tapoa
 Tapoa Lesson, 1842 accepted as Phascogale Temminck, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Dasyuromorphia (Order) > Dasyuridae (Family)
     Tapoa Owen, 1839 accepted as Trichosurus Lesson, 1828 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Phalangeridae (Family)

Tappanella
     Tappanella Gudina & Saidova, 1969 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Glandulinidae (Family)
 Tappanella Anderson, 1984 † accepted as Helentappanella Andersen, 1985 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Miliolidae (Family)

Taprobanus
 Taprobanus Distant, 1911 accepted as Pneustocerus Horváth, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Berytidae (Family)
 Taprobanus Loos, 1949 accepted as Xiphinemella Loos, 1950 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Dorylaimidae (Family)

Taquara
     Taquara Mello-Leitão, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
     Taquara I.L.C. Oliveira & R.P. Oliveira, 2019 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Tara
     Tara Peckham, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Tara Duncan, 1994 accepted as Dana Lowry, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Talitridae (Family)
 Tara Molina, 1789 accepted as Caesalpinia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tarachia
     Tarachia Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tarachia K.B. Presl, 1851 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)

Taractes
     Taractes Lowe, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Bramidae (Family)
 Taractes Kirsch, 1868 accepted as Cyriaspis Kirsch, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Taracticus
     Taracticus Loew, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Taracticus Berg, 1881 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)

Taramellia
     Taramellia Seguenza, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Taramellia Del Campana, 1903 † accepted as Taramelliceras Del Campana, 1904 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Oppeliidae (Family)

Tarandus
     Tarandus Gray, 1825 accepted as Rangifer Smith, 1827 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Tarandus Billberg, 1828 accepted as Rangifer Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Tarandus Dejean, 1833 accepted as Ceruchus Macleay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tarantula
     Tarantula Koch in Hahn (Koch), 1847 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneae (awaiting allocation) (Family)
 Tarantula Fabricius, 1793 accepted as Phrynus Lamarck, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Amblypygi (Order) > Tarantulidae (Family)

Taravalia
 Taravalia V.P. Shuysky, 1973 † accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > (Class) > Rhodophyta (awaiting allocation) (Order) > Rhodophyceae (awaiting allocation) (Family)
 Taravalia E.L. Greene, 1906 accepted as Ptelea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Taraxacum
 Taraxacum Zinn, 1757 accepted as Taraxacum Zinn, 1757 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Taraxacum F.H. Wiggers, 1780 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Taraxis
     Taraxis B.G. Briggs & L.A.S. Johnson, 1998 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)
 Taraxis Gistel, 1848 accepted as Cryptocephalus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Taraxis Leconte in Agassiz, 1850 accepted as Zeugophora Kunze, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Megalopodidae (Family)

Tardigradus
     Tardigradus Brisson, 1762 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Pilosa (Order) > Bradypodidae (Family)
 Tardigradus Boddaert, 1785 accepted as Loris Geoffroy, 1796 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Lorisidae (Family)

Tarentula
     Tarentula Sundevall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)
 Tarentula Agassiz, 1846 accepted as Tarentola Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
 Tarentula Leech, 1814 accepted as Phrynus Lamarck, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Amblypygi (Order) > Phrynidae (Family)

Targionia
     Targionia Linnaeus, 1753 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Targioniaceae (Family)
     Targionia Signoret, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
     Targionia Hesse, 1923 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tarraga
 Tarraga Walker, 1869 accepted as Prophalangopsis Walker, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Prophalangopsidae (Family)
 Tarraga Walker, 1868 accepted as Monastria Saussure, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)

Tarsalia
     Tarsalia Morawitz, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tarsalia Podany, 1968 † accepted as Gestriana Podany, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tarsiger
     Tarsiger Hodgson, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)
     Tarsiger Hodgson, 1844 accepted as Tarsiger Hodgson, 1845 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)

Tarsolarkus
     Tarsolarkus Thor, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Anystidae (Family)
 Tarsolarkus Zoological Record accepted as Tarsolarcus Thor, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Anystidae (Family)

Tarsopterus
     Tarsopterus Reinhardt & Lütken, 1862 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
 Tarsopterus Clarke & Ruedemann, 1912 † accepted as Tarsopterella Størmer, 1951 † · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Eurypterida (Order) > Eurypterida (awaiting allocation) (Family)

Tarsostenus
     Tarsostenus Spinola, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Tarsostenus Gemminger & Harold, 1868 accepted as Cymindis Latreille, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tartagalia
     Tartagalia Capurro, 1961 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Tartagalia (A. Robyns) T. Meyer, 1968 accepted as Eriotheca H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Taruma
     Taruma Pate, 1944 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
     Taruma Morais, Fairchild & Lahr in Morais et al., 2017 † · Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > (Family)

Tasmania
 Tasmania Jacquemart, 1965 accepted as Liapota · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Plectrotarsidae (Family)
 Tasmania Tonnoir & Malloch, 1926 accepted as Lauxania Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lauxaniidae (Family)

Tasmaniella
 Tasmaniella Ancey, 1898 accepted as Beddomeia Petterd, 1889 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
 Tasmaniella Chamberlin, 1920 accepted as Hanseniella Bagnall, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Symphyla (Class) > (Order) > Scutigerellidae (Family)

Tassia
     Tassia H. Sydow & P. Sydow, 1919 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Tassia Druce, 1910 accepted as Tascia Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)

Tataromys
     Tataromys Matthew & Granger, 1923 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Ctenodactylidae (Family)
 Tataromys Chardin, 1926 † accepted as Tataromys Matthew & Granger, 1923 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Ctenodactylidae (Family)

Tatea
 Tatea B.C. Seemann, 1866 accepted as Bikkia Reinwardt, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Tatea F. von Mueller, 1883 accepted as Premna Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Tatea Tenison-Woods, 1879 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tateidae (Family)

Tatulaspis
     Tatulaspis Ivshin, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Tatulaspis Ivshin, 1956 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tauria
     Tauria Dana, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Tauria accepted as Thauria Moore, 1893 & 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Taurichthys
 Taurichthys Cuvier, 1829 accepted as Heniochus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)
 Taurichthys Swainson, 1838 accepted as Heniochus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)

Tauripalpoides
 Tauripalpoides Pegazzano, 1975 accepted as Brevipalpus Donnadieu, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tenuipalpidae (Family)
 Tauripalpoides Pegazzano, 1975 [2] accepted as Brevipalpus Donnadieu, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tenuipalpidae (Family)

Taurocephalus
     Taurocephalus J.B. Simpson, 1961 † (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Taurocephalus Broom, 1928 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tauroceras
     Tauroceras Schafhäutl, 1854 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Goniatitida (awaiting allocation) (Family)
 Tauroceras Toumansky, 1938 † accepted as Neopopanoceras Schindewolf, 1939 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Popanoceratidae (Family)
 Tauroceras N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Tauroceras Hope, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Taurocerus
     Taurocerus Amyot & Serville, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Taurocerus Agassiz, 1846 accepted as Tauroceras Hope, 1841 (misspelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tauromenia
     Tauromenia Seguenza, 1885 † accepted as Tauromenia Seguenza, 1885 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Zeilleriidae (Family)
     Tauromenia Fucini, 1931 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Taurotragus
     Taurotragus Wagner, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Taurotragus Lacordaire, 1869 accepted as Taurotagus Lacordaire, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tauscheria
     Tauscheria Bryk, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tauscheria F.E.L. Fischer ex A.P. de Candolle, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Tauschia
     Tauschia Schlechtendal, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tauschia Preissler, 1828 accepted as Tauschia Preissler, 1828 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericales (awaiting allocation) (Family)
     Tauschia Haber, 1932 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Tavaresia
     Tavaresia Welwitsch, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Tavaresia Kieffer, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Tavaresiella
     Tavaresiella T. Majewski, 1980 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)
     Tavaresiella Del Guercio, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tavastia
     Tavastia Saether, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Tavastia Tuiskunen, 1985 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Taxigramma
     Taxigramma Macquart, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
     Taxigramma Perris, 1852 accepted as Taxigramma Macquart, 1850 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Taxila
     Taxila Doubleday, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
 Taxila Stål, 1870 accepted as Kallitaxila Kirkaldy, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
 Taxila Walker, 1855 accepted as Dysschema Hübner, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Taxites
     Taxites A.T. Brongniart, 1828 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
 Taxites H.R. Göppert, 1841 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)

Taxodiella
     Taxodiella Zalessky, 1939 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
     Taxodiella Kuznetzova in Schneider, Kuznetsova & Kats, 1957 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Bythocytheridae (Family)

Taxonus
     Taxonus Hartig, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Taxonus Dahlbom, 1835 accepted as Taxonus Dahlbom, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Taxoxylon
     Taxoxylon Unger, 1842 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
     Taxoxylon C. Houlbert in P. Lecointre, 1910 † accepted as Taxodioxylon Hartig, 1848 † (junior homonym)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Cupressaceae (Family)

Taxoxylum
 Taxoxylum Bronn, 1848 † accepted as Hyaenodon Laizer & Parieu, 1838 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Creodonta (Order) > Hyaenodontidae (Family)
 Taxoxylum Unger, 1842 † accepted as Taxoxylon Unger, 1842 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)

Taxus
     Taxus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Taxaceae (Family)
 Taxus Geoffroy & Cuvier, 1795 accepted as Meles Brisson, 1762 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)

Tayloria
     Tayloria Malloch, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Tayloria Bourguignat, 1889 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tayloria W.J. Hooker, 1816 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Splachnales (Order) > Splachnaceae (Family)

Taylorius
     Taylorius Britton, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Taylorius Gordon, 2014 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Lepraliomorpha (Order) > Escharinidae (Family)

Tayra
 Tayra Palmer, 1904 accepted as Eira Smith, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
 Tayra Oken, 1816 accepted as Eira Smith, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)

Tchaiaspis
     Tchaiaspis Korobov, 1966, nom. nud. † accepted as Tchaiaspis Korobov, 1966 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Conocoryphidae (Family)
     Tchaiaspis Korobov, 1966 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Conocoryphidae (Family)

Tchihatchewia
     Tchihatchewia F.J.A.N. Unger in P. de Tchihatcheff, 1863 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Tchihatchewia Boissier in Tchihatcheff, 1866 accepted as Neotchihatchewia S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Teba
     Teba Grunin, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
 Teba Turton, 1831 accepted as Theba Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)

Tebenna
     Tebenna Billberg, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)
 Tebenna Hübner, 1825 accepted as Heinemannia Wocke in Heinemann, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Elachistidae (Family)

Teberdinia
     Teberdinia Shileyko, 1978 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Teberdinia Sogonov, W. Gams, Summerbell & Schroers, 2005 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Pseudeurotiaceae (Family)

Technitella
     Technitella de Folin, ? 1882 accepted as Technitella de Folin, ? 1882 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Technitella Norman, 1878 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Saccamminidae (Family)

Technites
     Technites Schönherr, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Technites Schmiedeknecht, 1909 accepted as Trechnites Thomson, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Technophorus
     Technophorus Miller, 1889 † · Animalia (Kingdom) > Mollusca (Phylum) > Rostroconchia (Class) > Ribeirioida (Order) > Ribeiriidae (Family)
     Technophorus Branson, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Tecmessa
     Tecmessa Burmeister, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Tecmessa Pickard-Cambridge, 1882 accepted as Chthonos Coddington, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiosomatidae (Family)

Tectacingulum
     Tectacingulum Huys, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)
     Tectacingulum Harris, 1994 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)

Tectaria
     Tectaria Cavanilles, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Tectariaceae (Family)
 Tectaria Guérin-Méneville, 1829-43 accepted as Tectarius Valenciennes, 1832 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)

Tecton
     Tecton Chevrolat, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tecton Gistl, 1848 accepted as Walckenaeria Blackwall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Tectoptinus
 Tectoptinus Iablokoff-Khnzorian & Karapetian, 1991 accepted as Ptinus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Tectoptinus Iablokoff-Khnzorian & Karapetian, 1986 accepted as Ptinus Linnaeus, 1767 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tectosternum
     Tectosternum Balfour-Brown, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)
 Tectosternum Balfour-Browne, 1950 accepted as Tectosternum Balfour-Brown, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Tectura
     Tectura Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)
     Tectura Audouin & Edwards, 1830 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tecturella
 Tecturella Carpenter, 1860 accepted as Lottia Gray, 1833 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)
 Tecturella Stimpson, 1854 accepted as Flabelligera Sars, 1829 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)

Teganium
     Teganium Rauff, 1894 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Reticulosa (Order) > Reticulosa (awaiting allocation) (Family)
 Teganium Schmidel, 1763 accepted as Nolana Linnaeus f., 1762 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Tegea
     Tegea Stål, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
     Tegea Pranskevichius, 1973 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Primitiidae (Family)

Tegenaria
     Tegenaria Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
 Tegenaria Walckenaer, 1805 accepted as Tegenaria Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)

Tegeocranus
     Tegeocranus Berlese, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Tegeocranus Nicolet, 1855 accepted as Cepheus Koch in Panzer, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Tectocepheidae (Family)

Tegulifera
     Tegulifera Saalmüller, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Tegulifera Schellwien, 1898 † accepted as Teguliferina Schuchert & Le Vene, 1929 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Cyclacanthariidae (Family)

Tegulithyris
     Tegulithyris Buckman, 1918 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Tegulithyrididae (Family)
     Tegulithyris Buckman, 1915 † accepted as Tegulithyris Buckman, 1918 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Tegulithyrididae (Family)

Tehuana
     Tehuana J.L. Panero & J.L. Villaseñor, 1997 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tehuana Rodríguez & Smalley in Smalley, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pseudothelphusidae (Family)

Teichertina
     Teichertina Veevers, 1959 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Dicoelosiidae (Family)
 Teichertina Palmieri, 1994 † accepted as Palmierina Özdikmen, 2009 † · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Crithioninidae (Family)

Teilhardia
     Teilhardia Seward, 1913 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)
     Teilhardia Matthew & Granger, 1926 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)

Teinodactyla
     Teinodactyla Chevrolat in Dejean, 1836 accepted as Longitarsus Berthold in Latreille, 1827 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Teinodactyla Faldermann, 1837 accepted as Teinodactyla Chevrolat in Dejean, 1836 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Teinotus
     Teinotus Brancsik, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Teinotus Schepman, 1908 accepted as Teinotus Schepman, 1908 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Haliotidae (Family)

Tejeraia
     Tejeraia Añez, 1982 (uncertain)· Protozoa (Kingdom) > Euglenozoa (Phylum) > Kinetoplastea (Class) > Trypanosomatida (Order) > Trypanosomatidae (Family)
     Tejeraia Diaz-Ungria, 1964 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Spirocercidae (Family)

Telamonia
     Telamonia Thorell, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Telamonia (E.M. Fries) Wünsche, 1877 accepted as Cortinarius (Persoon) S.F. Gray, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Cortinariaceae (Family)

Telara
     Telara Günther, 1868 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Telara Valenciennes in Cuvier & Valenciennes, 1848 accepted as Setipinna Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Engraulidae (Family)

Telea
     Telea Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Telea Stephens, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)

Telebasis
     Telebasis Selys, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Coenagrionidae (Family)
 Telebasis Selys, 1877 accepted as Teinobasis Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Cordulegasteridae (Family)

Telebolus
     Telebolus Marshall in André, 1888 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Telebolus Lindau, 1905 accepted as Thelebolus Tode, 1790 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Thelebolales (Order) > Thelebolaceae (Family)

Telegonus
 Telegonus Hübner, 1819 accepted as Astraptes Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Telegonus Koch, 1837 accepted as Thestylus Simon, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)

Teleia
     Teleia Heinemann, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Teleia Fieber, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tingidae (Family)
 Teleia Hübner, 1825 accepted as Teleiodes Sattler, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Telekia
     Telekia Sohn & Morris, 1963 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Telekia J.C.G. Baumgarten, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Telembryon
     Telembryon Iredale, 1939, nom. nud. accepted as Bothriembryon Pilsbry, 1894 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Bothriembryontidae (Family)
     Telembryon Iredale, 1939, nom. nud. [2] accepted as Bothriembryon Pilsbry, 1894 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Bothriembryontidae (Family)

Telemus
     Telemus Reinhard, 1967 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Telemus Pascoe, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Telenomus
     Telenomus Haliday, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Telenomus Curtis, 1829-30 accepted as Telenomus Haliday, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Teleogramma
     Teleogramma Meyrick, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)
     Teleogramma Boulenger, 1899 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)

Teleorhinus
     Teleorhinus Uhler, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Teleorhinus Osborn, 1904 † accepted as Terminonaris Osborn, 1904 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Pholidosauridae (Family)

Teleosaurus
     Teleosaurus Geoffroy, 1825 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Thalattosuchia (Order) > Teleosauridae (Family)
     Teleosaurus Kner, 1867 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Telephium
 Telephium J. Hill, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Telephium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Telephoroides
     Telephoroides Laporte, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Telephoroides Motschulsky, 1853 accepted as Photuris Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)

Telephorus
     Telephorus Tilesius, 1805 accepted as Telephorus Tilesius, 1805 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Telephorus Schaeffer, 1766 accepted as Cantharis Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)

Telephus
     Telephus Barrande, 1852 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)
     Telephus Barrande, 1850 † accepted as Telephus Barrande, 1850 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)
 Telephus Gistl, 1848 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Telephus Quatrefages, 1866 accepted as Thelepus Leuckart, 1849 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Telesilla
     Telesilla Reichenbach, 1853 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Telesilla Herrich-Schäffer, 1856 accepted as Eucarta Lederer, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Telesto
     Telesto Rafinesque, 1814 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Telesto Lamouroux, 1812 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Alcyonacea (Order) > Clavulariidae (Family)
 Telesto Boisduval in d'Urville, 1832 accepted as Toxidia Mabille, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Teletriophtydeus
     Teletriophtydeus André, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)
     Teletriophtydeus André, 1979 accepted as Teletriophtydeus André, 1980 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)

Teleutemnesta
     Teleutemnesta Holmberg, 1887 accepted as Teleutemnesta Holmberg, 1887 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Teleutemnesta Holmberg, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Teleutospora
 Teleutospora J.C. Arthur & G.R. Bisby, 1921 accepted as Uromyces (Link) Unger, 1833 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
     Teleutospora B. Renault, 1894 † (uncertain)· Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Teliophleps
 Teliophleps Enderlein, 1942 accepted as Campylocera Macquart, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pyrgotidae (Family)
 Teliophleps Hering, 1940 accepted as Adapsilia Waga, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pyrgotidae (Family)

Tellena
 Tellena Lacordaire, 1848 accepted as Helioscopa Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Tellena Fleming, 1822 accepted as Tellina Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)

Tellinarius
 Tellinarius Salisbury, 1934 accepted as Tellinella Mörch, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)
 Tellinarius Froriep in Duméril, 1806 accepted as Tellina Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Tellinidae (Family)

Tellinites
 Tellinites Gesner, 1758 † accepted as · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)
     Tellinites Schlotheim, 1813 † accepted as (nomen dubium)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)

Tellinomya
     Tellinomya Hall, 1847 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tellinomya Agassiz, 1846 accepted as Tellimya T. Brown, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Montacutidae (Family)

Telmatettix
     Telmatettix Bolivar, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
     Telmatettix Hancock, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Telmatornis
     Telmatornis Marsh, 1870 † · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriiformes (awaiting allocation) (Family)
     Telmatornis Marsh, 1870, nom. nud. † accepted as Telmatornis Marsh, 1870 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriiformes (awaiting allocation) (Family)

Telmessus
     Telmessus White, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Cheiragonidae (Family)
 Telmessus Stål, 1866 accepted as Telmessus Stål, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Nogodinidae (Family)

Telomerina
     Telomerina Rohácek, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Telomerina Rohácek, 1982 accepted as Telomerina Rohácek, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Telorchis
     Telorchis Looss, 1899 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Telorchis Lühe, 1899 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Telorchiidae (Family)

Telostoma
 Telostoma Graff, 1882 accepted as Telostoma Graff, 1882 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)
     Telostoma Örsted, 1843 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)
     Telostoma Grandori, 1935 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Telostoma Corliss, 1960 accepted as Telostomatella Foissner, 1985 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Telothrips
     Telothrips Priesner, 1929 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)
 Telothrips Kudo & Ananthakrishnan, 1974 † accepted as Aculeathrips Kudo, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)

Telphusa
     Telphusa Chambers, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Telphusa Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Potamidae (Family)

Telsphus
 Telsphus Barrande, 1852 † accepted as Telsphus Barrande, 1852 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)
     Telsphus Barrande, 1850 † accepted as Telsphus Barrande, 1850 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Telephinidae (Family)

Tembotherium
     Tembotherium Ameghino, 1887 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Tembotherium Moreno, 1882 accepted as Tembotherium Moreno, 1882 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Tembrockia
     Tembrockia Glibert & van de Poel, 1967 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Tembrockia Grundel, 1980 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Temburongia
     Temburongia Mahunka, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Synichotritiidae (Family)
     Temburongia S. Dransfield & K.M. Wong, 1996 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Temelucha
     Temelucha Förster, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Temelucha Meyrick, 1909 accepted as Temeluchella Fletcher, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Epermeniidae (Family)

Temeritas
     Temeritas Delamare-Deboutteville & Massoud, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Symphypleona (Order) > Sminthuridae (Family)
     Temeritas Richards, 1968 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Temesa
     Temesa Melichar, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)
     Temesa Adams, 1855 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)

Temesia
 Temesia Leach, 1852 accepted as Temesia Leach, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)
     Temesia Robineau-Desvoidy, 1863 accepted as Temesia Robineau-Desvoidy, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Temia
     Temia Oken, 1817 accepted as Temia Oken, 1817 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Temia Schinz in Cuvier, 1821 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Temnaspis
     Temnaspis Lacordaire, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Megalopodidae (Family)
     Temnaspis Fischer, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Pedunculata (Order) > Poecilasmatidae (Family)

Temnaster
     Temnaster Lambert, 1912 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Echinoidea (awaiting allocation) (Order) > Echinoidea (awaiting allocation) (Family)
 Temnaster Verrill, 1894 accepted as Pteraster Müller & Troschel, 1842 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Velatida (Order) > Pterasteridae (Family)

Temnochila
     Temnochila Erichson in Germar, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
     Temnochila Heckel in Russegger, 1849 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Temnochilus
 Temnochilus Agassiz, 1845 † accepted as Temnochilus Agassiz, 1845 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Nautilida (Order) > Koninckioceratidae (Family)
 Temnochilus Laferté-Sénectère, 1851 accepted as Temnochila Erichson in Germar, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Temnocidaris
     Temnocidaris Cotteau, 1863 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Cidaroida (Order) > Cidaridae (Family)
     Temnocidaris Agassiz, 1863 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Temnodiscus
     Temnodiscus Lambert & Thiéry, 1914 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Holectypoida (Order) > Coenholectypidae (Family)
     Temnodiscus Koken, 1896 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Bellerophontidae (Family)

Temnolaemus
 Temnolaemus Gemminger & Harold, 1872 accepted as Temnolaimus Chevrolat, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Temnolaemus Agassiz, 1846 accepted as Temnolaimus Chevrolat, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Temnopsis
     Temnopsis Signoret, 1879 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Temnopsis Audinet-Serville, 1834 accepted as Temnopis Audinet-Serville, 1834 (misspelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Temnopteryx
     Temnopteryx J.D. Hooker in Bentham & J.D. Hooker, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Temnopteryx Brunner von Wattenwyl, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)

Temnorhinus
     Temnorhinus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Temnorhinus Faust, 1904 accepted as Conorhynchus Motschoulsky, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Temnorhynchus
 Temnorhynchus Smith, 1849 accepted as Prosymna Gray, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Temnorhynchus Hope, 1837 accepted as Temnorrhynchus Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Temnorrhynchus
     Temnorrhynchus Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Temnorrhynchus Alluaud in Grandidier, 1900 accepted as Temnorrhynchus Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Temnostigma
     Temnostigma Handlirsch, 1939 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Temnostigma Handlirsch, 1939, nom. nud. † accepted as Temnostigma Handlirsch, 1939 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Temnostoma
     Temnostoma Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Temnostoma Blanchard, 1850 accepted as Astaena Erichson, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Temnostoma Guérin-Méneville, 1838 accepted as Temnostoma Guérin-Méneville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lycidae (Family)

Temnurus
     Temnurus Lesson, 1830-1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)
     Temnurus Swainson, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Coraciiformes (awaiting allocation) (Family)
 Temnurus Resser & Endo in Kobayashi, 1935 † accepted as Temnurus Resser & Endo in Kobayashi, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Temora
     Temora Baird, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Temoridae (Family)
     Temora Kirkaldy, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)

Temperea
     Temperea Bougon, 1896 (uncertain)· Plantae (Kingdom) > Charophyta (Phylum) > Zygnematophyceae (Class) > Desmidiales (Order) > Desmidiaceae (Family)
 Temperea Forti, 1912 accepted as Aulacodiscus C.G. Ehrenberg, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Coscinodiscales (Order) > Aulacodiscaceae (Family)
 Temperea M. Peragallo in Tempère & H. Peragallo, 1908 accepted as · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Templemania
     Templemania Busck, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Templemania Busck, 1940 accepted as Templemania Busck, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Templetonia
     Templetonia R. Brown ex W.T. Aiton, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Templetonia Lubbock, 1862 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)

Tenaris
     Tenaris Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Tenaris E.H.F. Meyer, 1838 accepted as Brachystelma R. Brown, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Tenebroides
 Tenebroides Scopoli, 1772 accepted as Tenebroides Piller & Mitterpacher, 1783 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
     Tenebroides Piller & Mitterpacher, 1783 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Tenerella
     Tenerella Liang, 1990 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Tenerellidae (Family)
     Tenerella Redtenbacher in Brunner & Redtenbacher, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Pseudophasmatidae (Family)

Teneridrilus
     Teneridrilus Holmquist, 1985 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)
     Teneridrilus Eisen, 1879 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)

Tenguella
     Tenguella Matsumura, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)
     Tenguella Arakawa, 1965 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Tenisia
     Tenisia Martynova, 1970 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ulbospiriferidae (Family)
     Tenisia Reshetov, Spassov & Baishashov, 1993 † accepted as Allacerops Wood, 1932 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Eggysodontidae (Family)

Tenka
     Tenka Boucek, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Agaonidae (Family)
     Tenka Barrande, 1881 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Antipleuroida (Order) > Stolidotidae (Family)

Tennentia
     Tennentia Quadras & Möllendorff, 1894 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tennentia Humbert, 1862 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tenorea
 Tenorea Rafinesque, 1814 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Tenorea Colla, 1824 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tenorea Gasparrini, 1844 accepted as Ficus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)
 Tenorea Tornabene, 1848-1849(?) accepted as Teloschistes Norman, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Teloschistaceae (Family)

Tenoria
     Tenoria K.P.J. Sprengel, 1813 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tenoria Dehnhardt & Giordano ex Dehnhardt, 1832 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Tenotus
     Tenotus Rafinesque, 1815 accepted as Tenotus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Tenotus Rafinesque, 1817 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Tenrecus
 Tenrecus Fischer, 1808 accepted as Tenrec Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Afrosoricida (Order) > Tenrecidae (Family)
 Tenrecus Desmarest, 1820 accepted as Tenrec Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Afrosoricida (Order) > Tenrecidae (Family)

Tentacularia
     Tentacularia Bosc, 1797 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Trypanorhyncha (Order) > Tentaculariidae (Family)
 Tentacularia Zeder in Goeze, 1800 accepted as Setaria Viborg, 1795 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Onchocercidae (Family)

Tentyriina
     Tentyriina Peyerimhoff, 1907 accepted as Tentyrina Reitter, 1901 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tentyriina Schuster, 1925 accepted as Tentyriina Peyerimhoff, 1907 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tenua
     Tenua Eisenack, 1958 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Areoligeraceae (Family)
 Tenua R.J. Davey, 1978 † accepted as Sentusidinium W.A.S. Sarjeant & L.E. Stover, 1978 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacaceae (Family)

Tenuicephalus
     Tenuicephalus Schwarzhans & Møller, 2021 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ophidiiformes (Order) > Ophidiidae (Family)
     Tenuicephalus Wunderlich, 2021 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Tetrablemmidae (Family)

Tenuicrus
     Tenuicrus Harrison & Walker, 1976 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Charadriiformes (awaiting allocation) (Family)
 Tenuicrus Womersley, 1940 accepted as Petrobia Murray, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tetranychidae (Family)

Tenuis
     Tenuis Barrande, 1881 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tenuis Wagner, 1910 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Helicinidae (Family)

Tephis
     Tephis Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)
 Tephis Rafinesque, 1837 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Tephrites
 Tephrites Paetel, 1875 accepted as Tephrites Paetel, 1875 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tephrites Gray, 1832 accepted as Tephritis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Tephritis
     Tephritis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
     Tephritis Herrmannsen, 1849 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tephritis Günther, 1862 accepted as Tephrinectes Günther, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Paralichthyidae (Family)

Tephrosia
     Tephrosia Persoon, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Tephrosia Boisduval, 1840 accepted as Ectropis Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Tephrostola
 Tephrostola Bezzi, 1913 accepted as Platensina Enderlein, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Tephrostola Houlbert in Oberthuer, 1918 accepted as Frostetola Oiticica Filho, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Castniidae (Family)

Tepperia
     Tepperia Lea, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tepperia Kirby, 1910 accepted as Eppertia Shaw, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)

Terambus
     Terambus Rafinesque, 1815 accepted as Terambus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Terambus Gistl, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Terambus Champion, 1903 accepted as Teridates Champion, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Terana
     Terana Adanson, 1763 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Phanerochaetaceae (Family)
     Terana La Llave, 1884 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Terania
     Terania Pirán, 1963 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Terania Raven, 1980 accepted as Teranodes Raven, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Hexathelidae (Family)
 Terania Berland, 1832 accepted as Leucophyllum Bonpland in Humboldt & Bonpland, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Teras
     Teras Hartig in Germar, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Teras Treitschke, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Teras Bernhauer, 1905 accepted as Teiros Eichelbaum, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Teratichthys
     Teratichthys König, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)
 Teratichthys Giglioli, 1882 accepted as Polyacanthonotus Bleeker, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Notacanthiformes (Order) > Notacanthidae (Family)

Teratodes
     Teratodes Brullé, ? 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Teratodes Guenée, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Teratodes Koch, 1838 accepted as Filistata Latreille, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Filistatidae (Family)

Teratomorpha
     Teratomorpha Turner, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Teratomorpha Nicéville, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Teratomorpha Walsingham, 1912 accepted as Trycherodes Meyrick, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Depressariidae (Family)

Teratoneura
     Teratoneura Dudgeon, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
     Teratoneura Poppius, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Teratophyllum
     Teratophyllum Mettenius ex Kuhn, 1870 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Dryopteridaceae (Family)
     Teratophyllum Lang, Smith & Thomas, 1940 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Cystiphyllida (Order) > Goniophyllidae (Family)

Teratopus
     Teratopus Loew, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Teratopus Agassiz, 1846 accepted as Terapopus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Terebella
     Terebella Linnaeus, 1767 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Terebella [auctt.] accepted as Nicolea Malmgren, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Terebellopsis
     Terebellopsis Leymerie, 1846 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Terebellopsis Howell, 1953 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellida (awaiting allocation) (Family)
     Terebellopsis Leymerie, 1844 † accepted as Terebellopsis Leymerie, 1846 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Terebellum
     Terebellum Montfort, 1810 accepted as Pectinaria Lamarck, 1818 (junior homonym)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Canalipalpata (Order) > Pectinariidae (Family)
     Terebellum Bruguière, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Seraphsidae (Family)
 Terebellum Lamarck, 1798 accepted as Terebellum Bruguière, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Seraphsidae (Family)
 Terebellum Röding, 1798 accepted as Terebellum Bruguière, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Seraphsidae (Family)
     Terebellum Gray, 1847 accepted as Turritella Lamarck, 1799 (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Turritellidae (Family)

Terebinthus
 Terebinthus P. Browne, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Burseraceae (Family)
 Terebinthus P. Miller, 1754 accepted as Pistacia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)

Terebraria
     Terebraria Rafinesque, 1831 (uncertain)· Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
 Terebraria O. Kuntze in Post & O. Kuntze, 1903 accepted as Neolaugeria D.H. Nicolson, 1979 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Terebraria Rafinesque, 1815 accepted as Terebra Bruguière, 1789 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)
 Terebraria Greville, 1864 † accepted as · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Terebratella
     Terebratella d'Orbigny, 1847 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratellidae (Family)
 Terebratella Shafee & Rizvi, 1984 accepted as Aprostocetus Westwood, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Terebratulites
     Terebratulites Martini, 1769 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Plectorthidae (Family)
     Terebratulites Blumenbach, 1803 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Terebratulites Huepsch, 1781 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Terebratulites Schlotheim, 1813 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Terebrella
     Terebrella Maltzan, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Terebrella Packard, 1867 accepted as Terebella Linnaeus, 1767 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Terebrella Palmer, 1937 † accepted as Mirula Palmer, 1942 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)
 Terebrella Andreae, 1887 † accepted as Diatrypesis Tomlin, 1929 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Metacerithiidae (Family)

Terebrina
 Terebrina Bartsch, 1923 accepted as Terebra Bruguière, 1789 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Terebridae (Family)
 Terebrina Rafinesque, 1815 accepted as Terebellum Bruguière, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Seraphsidae (Family)

Teredo
 Teredo Hübner, 1809-1813 accepted as Teredo Hübner, 1809-1813 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Teredo Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Teredinidae (Family)
     Teredo Forskål, 1775 accepted as Teredo Forskål, 1775 (nomen dubium)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Teredolites
     Teredolites Leymerie, 1842 † · Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > Gastrochaenolitidae (Family)
     Teredolites Leymerie, 1841 † accepted as Teredolites Leymerie, 1842 † (nomen nudum)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > Gastrochaenolitidae (Family)

Teredus
     Teredus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Teredidae (Family)
     Teredus Shuckard, 1840 accepted as Teredus Dejean, 1835 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Teredidae (Family)

Teremya
     Teremya Rondani, 1875 accepted as Teremyia Macquart, 1835 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lonchaeidae (Family)
     Teremya Schiner, 1868 accepted as Teremyia Macquart, 1835 (misspelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lonchaeidae (Family)

Teres
     Teres Böttger, 1878 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Teres Bucquoy, Dautzenberg & Dollfus, 1883 accepted as Teretia Norman, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Raphitomidae (Family)
 Teres Harris, 1829 accepted as Agrilus Curtis, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Teretia
     Teretia Norman, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Raphitomidae (Family)
     Teretia Monterosato, 1890 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Raphitomidae (Family)

Tereus
 Tereus Gray, 1867 accepted as Myxilla Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Myxillidae (Family)
     Tereus Billberg, 1820 accepted as Tetragonoderus Dejean, 1829 (nomen oblitum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tergipes
     Tergipes Cuvier, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tergipedidae (Family)
     Tergipes Risso, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tergumella
     Tergumella Chugaeva, Rozman & Ivanova, 1964 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Tergumella Kanygin, 1964 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Terina
     Terina Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Terina Hübner, 1823 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Terina Agassiz, 1838 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Termierella
     Termierella Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Protolenidae (Family)
     Termierella Hupé, 1952 † accepted as Termierella Hupé, 1952 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Protolenidae (Family)

Termitacarus
 Termitacarus Kurosa, 1994 accepted as Nipponophorus Kurosa, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pygmephoridae (Family)
 Termitacarus Trägårdh, 1906 accepted as Urozercon Berlese & Leonardi, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)

Termitella
     Termitella Cameron, 1939 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Termitella Wasmann, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Termitidium
     Termitidium Westwood, 1854 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Isoptera (awaiting allocation) (Family)
     Termitidium Goldenberg, 1877 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Isoptera (awaiting allocation) (Family)

Termitobia
     Termitobia Wasmann, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Termitobia Fric, 1890 accepted as Termitobia Wasmann, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Termitocalliphora
     Termitocalliphora Bauristhene in Pont, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
 Termitocalliphora Bauristhene, 1964 accepted as Termitocalliphora Bauristhene in Pont, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)

Termitophilus
     Termitophilus Britton, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Termitophilus Pasteels & Jacobson, 1984 accepted as Nasutiptochus Jacobson & Pasteels, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Termitopteryx
     Termitopteryx Verhoeff, 1940 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Pyrgodesmidae (Family)
 Termitopteryx Dybas, 1955 accepted as Dybasina Lundgren, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)

Termitosphaera
     Termitosphaera Wasmann, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)
     Termitosphaera Ciferri, 1935 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Lyophyllaceae (Family)

Termitotrox
     Termitotrox Wasmann, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Termitotrox Reichensperger, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Termophila
     Termophila Grassi, 1887 accepted as Thermobia Bergroth, 1890 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
 Termophila Lea, 1910 accepted as Hetairotermes Cameron, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Terna
     Terna Walker, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Terna Wood, 1835 accepted as Sterna Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Sternidae (Family)

Terpsichore
     Terpsichore A.R. Smith, 1993 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)
 Terpsichore Kinberg, 1866 accepted as Ophelina Örsted, 1843 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Opheliida (Order) > Opheliidae (Family)
 Terpsichore Gray, 1846 accepted as Terpsiphone Gloger, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)

Terquemia
     Terquemia Tate in Woodward, 1868 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)
     Terquemia van Veen, 1932 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)
 Terquemia van Bellen, 1946 † accepted as Boldia van Bellen, 1946 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Gavelinellidae (Family)

Terrakea
     Terrakea Booker, 1931 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Linoproductidae (Family)
     Terrakea Waterhouse, 1969 † accepted as Terrakea Waterhouse, 1969 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Articulata (awaiting allocation) (Family)

Terranova
     Terranova Leiper & Atkinson, 1914 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Anisakidae (Family)
 Terranova † accepted as Terranovia Maksimova, 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Lichida (Order) > Lichida (awaiting allocation) (Family)

Terrilimosina
     Terrilimosina Rohácek, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Terrilimosina Rohácek, 1982 accepted as Terrilimosina Rohácek, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Tersella
     Tersella J. Morellet in J. Morellet & M. Ters, 1952 † (uncertain)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Tersella Petrunina, 1973 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Terua
     Terua Dall, Bartsch & Rehder, 1938 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
 Terua Standley & Hermann, 1949 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Teruelia
     Teruelia B. Cascales-Miñana & P. Gerrienne, 2017 † · Plantae (Kingdom) > Horneophyta (Phylum) > Horneophytopsida (Class) > (Order) > (Family)
     Teruelia Moya-Sola, 1988 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Artiodactyla incertae sedis (Family)

Teruella
     Teruella Mongin, 1966 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Teruella Mongin, 1965 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Teschia
     Teschia C. Reid & E.M. Reid, 1915 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
     Teschia Števčić, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Brachyura incertae sedis (Family)

Tessaromma
     Tessaromma Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tessaromma Boheman, 1858 accepted as Blapstinus Dejean, 1821 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tessarops
     Tessarops Norman, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Tessarops Rafinesque, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)

Tesselata
     Tesselata Jousseaume, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cypraeidae (Family)
     Tesselata Wagner, 1897 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Cyclophoridae (Family)

Tessella
 Tessella C.G. Ehrenberg, 1836 accepted as Rhabdonema Kützing, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Rhabdonematales (Order) > Rhabdonemataceae (Family)
 Tessella G. Playfair, 1915 accepted as Neotessella B.Y. Jo, J.I. Kim, W. Shin, P. Škaloud & P. Siver, 2016 · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Synurales (Order) > Neotessellaceae (Family)
     Tessella Breyer, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Tessellaria
     Tessellaria (W.P. Schimper & A. Mougeot) C.E.I. von Eichwald, 1852 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lepidodendrales (Order) > Tessellariaceae (Family)
 Tessellaria Playfair, 1918 accepted as Neotessella B.Y. Jo, J.I. Kim, W. Shin, P. Škaloud & P. Siver, 2016 · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Synurales (Order) > Neotessellaceae (Family)

Tessellina
     Tessellina Dumortier, 1822 (uncertain)· Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Corsiniaceae (Family)
 Tessellina Dumortier, 1874 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Oxymitraceae (Family)

Tesseraria
     Tesseraria Haeckel, 1880 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Tesseraria Böttger, 1881 accepted as Phenacharopa Pilsbry in Tryon & Pilsbry, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Tessmannella
     Tessmannella Hedicke, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tessmannella Enderlein, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platystomatidae (Family)

Tessmannia
     Tessmannia Bryk, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tessmannia Harms, 1910 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Testacella
     Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)
 Testacella Cuvier, 1805 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)
     Testacella Cuvier, 1800 accepted as Testacella Lamarck, 1801 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)
 Testacella Draparnaud, 1801 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)

Testacellus
     Testacellus Montfort, 1810 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Testacellus Férussac, 1819 accepted as Testacella Lamarck, 1801 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Testacellidae (Family)

Testudinalia
     Testudinalia Moskalev, 1964 accepted as Testudinalia Moskalev, 1964 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)
     Testudinalia Moskalev, 1966 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Patellogastropoda (Order) > Lottiidae (Family)

Testudinaria
     Testudinaria Taczanowski, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)
 Testudinaria R.A. Salisbury in Burchell, 1824 accepted as Dioscorea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)
     Testudinaria Zhang, Sun & Zhang, 1994 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Testudinella
     Testudinella Bory de St. Vincent, 1826 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Flosculariaceae (Order) > Testudinellidae (Family)
     Testudinella Gray, 1870 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Testudinidae (Family)

Tesuquea
     Tesuquea Klots, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Carposinidae (Family)
     Tesuquea Sutherland & Harlow, 1973 † accepted as Brachiotesuquea Ceccolini & Cianferoni, 2022 † (junior homonym)· Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Tetanocera
     Tetanocera Duméril, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciomyzidae (Family)
     Tetanocera Latreille, 1804 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Tetanonema
     Tetanonema Steiner, 1928 accepted as Steinertetanonema Sokolov, 2010 (nomen nudum)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Steinertetanonematidae (Family)
 Tetanonema Steiner, 1937 accepted as Steinertetanonema Sokolov, 2010 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Steinertetanonematidae (Family)
 Tetanonema Ulmer, 1905 accepted as Helicopsyche Bremi in Siebold, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Helicopsychidae (Family)

Tethea
 Tethea Johnston, 1842 accepted as Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)
     Tethea Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Drepanidae (Family)

Tethia
 Tethia Nardo, 1847 accepted as Stelletta Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Tethia Lamarck, 1816 accepted as Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)

Tethis
 Tethis Crosse, 1861 † accepted as Thetis Sowerby, 1826 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactromyidae (Family)
 Tethis Bosc, 1801 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Tethya
     Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)
 Tethya Gray, 1840 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Tethyopsilla
     Tethyopsilla Lendenfeld, 1887 accepted as Tethyopsilla Lendenfeld, 1887 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)
 Tethyopsilla Lendenfeld, 1888 accepted as Craniella Schmidt, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)

Tethyopsis
     Tethyopsis Stewart, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Tethyopsis Zittel, 1878 † accepted as Theneopsis Schrammen, 1910 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Tethys
     Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)
 Tethys Leach, 1852 accepted as Tethys Leach, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)
 Tethys Linnaeus, 1758 accepted as Aplysia Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Anaspidea (Order) > Aplysiidae (Family)

Tethysia
     Tethysia Mathews, 1933 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tethysia Donze, 1975 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Tethysiella
     Tethysiella Kotlyar, Zakharov & Polubotko, 2004 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productellidae (Family)
     Tethysiella Blau in Blau & Haas, 1991 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Tethyspira
     Tethyspira Topsent, 1890 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Bubarida (Order) > Dictyonellidae (Family)
     Tethyspira Siblik, 1991 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferinidae (Family)

Tethyum
 Tethyum Lieberkühn, 1859 accepted as Tethya Lamarck, 1815 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Tethyidae (Family)
 Tethyum Bohadsch, 1761 accepted as Halocynthia Verrill, 1879 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Bolteniidae (Family)

Tetigonia
 Tetigonia Blanchard in Gay, 1852 accepted as Cicadella Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Tetigonia Geoffroy, 1762 accepted as Cicadella Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Tetilla
     Tetilla Schmidt, 1868 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spirophorida (Order) > Tetillidae (Family)
     Tetilla A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Geraniales (Order) > Francoaceae (Family)

Tetillopsis
     Tetillopsis Schrammen, 1910 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Astrophorida (awaiting allocation) (Family)
     Tetillopsis Hong, 1982 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tetoria
     Tetoria Kobayashi & Suzuki, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cyrenidae (Family)
     Tetoria T. Kimura & S. Sekido, 1974 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadales (Order) > Cycadales (awaiting allocation) (Family)

Tetrabaena
     Tetrabaena (F. Dujardin, 1841) E. Fromentel, 1874 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrabaenaceae (Family)
 Tetrabaena F. Dujardin, 1841 accepted as Tetrabaena (F. Dujardin, 1841) E. Fromentel, 1874 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrabaenaceae (Family)

Tetrabaeus
     Tetrabaeus Kieffer in André, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tetrabaeus Ogloblin, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Tetrabrachium
     Tetrabrachium A. Nawawi & A.J. Kuthubutheen, 1987 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Tetrabrachium Günther, 1880 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Tetrabrachiidae (Family)

Tetracanthus
     Tetracanthus A. Richard in Sagra, 1850 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tetracanthus Hemprich & Ehrenberg in Schneider, 1866 accepted as Ancyracanthus Diesing, 1839 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Gnathostomatidae (Family)
     Tetracanthus Popofsky, 1907 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Tetracanthus Hope, 1834 accepted as Chlorida Audinet-Serville, 1834 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetracarpaea
     Tetracarpaea W.J. Hooker, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Tetracarpaeaceae (Family)
 Tetracarpaea G. Bentham, 1858 accepted as Anisophyllea R. Brown ex Sabine, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Anisophylleaceae (Family)

Tetracentron
     Tetracentron D. Oliver, 1889 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Trochodendrales (Order) > Trochodendraceae (Family)
     Tetracentron Brauer, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Tetracera
     Tetracera Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)
 Tetracera McMurtrie in McMurtrie-Cuvier, 1831 accepted as Tetracerus Leach, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tetraceras
     Tetraceras R. Chodat, 1894 accepted as Tetraceras R. Chodat, 1894 (nomen dubium)· Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)
 Tetraceras Sundevall, 1846 accepted as Tetracerus Leach, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tetraceratium
     Tetraceratium Muir, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)
 Tetraceratium (A.P. de Candolle) O. Kuntze, 1891 accepted as Tetracme Bunge, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Tetrachaeta
     Tetrachaeta Brauer & Bergenstamm, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Tetrachaeta Stein, 1898 accepted as Tetramerinx Berg, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Tetrachaeta Ehrenberg, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Tetrachaetus
 Tetrachaetus Parent, 1933 accepted as Tetrachaetus Bickel & Dyte, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Tetrachaetus Bickel & Dyte, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Tetrachela
     Tetrachela Reuss, 1858 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Tetrachelidae (Family)
     Tetrachela Hampson, 1918 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tetrachia
 Tetrachia P.A. Saccardo, 1921 accepted as Spegazzinia P.A. Saccardo, 1879 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Tetrachia Berkeley & M.A. Curtis, 1882 accepted as Spegazzinia P.A. Saccardo, 1879 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tetrachloris
 Tetrachloris A. Pascher & R. Jahoda, 1928 accepted as Quadrichloris Fott, 1959 · Plantae (Kingdom) > Chlorophyta (Phylum) > Pyramimonadophyceae (Class) > Pyramimonadales (Order) > Polyblepharidaceae (Family)
     Tetrachloris A. Pascher, 1925 (uncertain)· Bacteria (Kingdom) > Chlorobi (Phylum) > Chlorobea (Class) > Chlorobiales (Order) > Chlorobiaceae (Family)
 Tetrachloris A.A. Korshikov, 1939 accepted as Tetrachlorella Korshikov, 1939 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)

Tetrachrysis
     Tetrachrysis A.J. Dop, 1980 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeothamniophyceae (Class) > Phaeothamniales (Order) > Phaeothamniaceae (Family)
     Tetrachrysis Lichtenstein, 1876 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)

Tetracis
 Tetracis Sharp, 1874 accepted as Desimia Reitter, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Tetracis Guenée, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Tetracladium
     Tetracladium De Wildeman, 1893 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Tetracladium Kulachkova, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Opisthorchiida (Order) > Heterophyidae (Family)
     Tetracladium (Mitten) V.F. Brotherus in Engler & Prantl, 1925 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)

Tetracme
     Tetracme Hampson, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Tetracme Bunge, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Tetracoccus
 Tetracoccus Tereg, 1923 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrasporaceae (Family)
 Tetracoccus accepted as Tetracoccus · Bacteria (Kingdom) > Bacteria (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Tetracoccus Engelmann ex C. Parry, 1885 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Picrodendraceae (Family)
 Tetracoccus W. West, 1892 accepted as Westella De Wildeman, 1897 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Scenedesmaceae (Family)

Tetracona
     Tetracona K.B. Korde in A.A. Istchenko, 1986 † (uncertain)· Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycetes (Class) > Ascomycetes incertae sedis (Order) > Ascomycetes incertae sedis (Family)
     Tetracona Meyrick, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tetracotylus
     Tetracotylus Monticelli, 1892 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
     Tetracotylus Korotneff, 1912 accepted as Tetracotylus Korotneff, 1912 (nomen dubium)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)

Tetracrinites
     Tetracrinites Austin, 1842 accepted as Tetracrinites Austin, 1842 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Tetracrinites Catullo, 1847 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Tetracrinus
     Tetracrinus Münster, 1839 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cyrtocrinida (Order) > Cyrtocrinida (awaiting allocation) (Family)
 Tetracrinus Bather in Lankester, 1900 accepted as Tetracrinus Bather in Lankester, 1900 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Tetracrinus Wachsmuth & Springer, 1886 accepted as Tetracrinus Wachsmuth & Springer, 1886 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Tetractis
     Tetractis Andres, 1883 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Boloceroididae (Family)
     Tetractis Schultze, 1760 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Tetractys
 Tetractys E. Boureau, M. Locquin & P. Taugourdeau, 1985 † accepted as · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Tetractys K.P.J. Sprengel, 1822 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)

Tetracyphus
     Tetracyphus Chevrolat, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Tetracyphus Sørensen, 1932 accepted as Roquettea Mello-Leitão, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Cosmetidae (Family)

Tetracystis
     Tetracystis R.M. Brown, Jr. & H.C. Bold, 1964 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlorococcaceae (Family)
     Tetracystis Schuchert, 1904 † · Animalia (Kingdom) > Echinodermata (Phylum) > Rhombifera (Class) > Dichoporita (Order) > Callocystitidae (Family)

Tetradenia
     Tetradenia Bentham, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Tetradenia C.G.D. Nees in Wallich, 1831 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)

Tetradia
     Tetradia T. Johnson, 1904 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Tetradia Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetradia Du Petit-Thouars ex Tulasne, 1856 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
 Tetradia R. Brown, 1844 accepted as Pterygota H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Tetradinium
     Tetradinium Klebs, 1912 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Phytodiniales (Order) > Phytodiniaceae (Family)
 Tetradinium Vavrdová, 1973 † accepted as Tetraniveum Vavrdová, 1976 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Tetradites
     Tetradites Sokolov, 1950 † accepted as Tetradites Sokolov, 1950 † (nomen nudum)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)
     Tetradites I.C. Cookson, 1947 † (uncertain)· Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Tetradites T. van der Hammen, 1954 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tetradium
     Tetradium Dana in Wilkes, 1841 † · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Tetradiida (Order) > Tetradiidae (Family)
     Tetradium Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Tetradium Schlechtendal, 1852 accepted as Bremia Regel, 1843 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Peronosporales (Order) > Peronosporaceae (Family)
 Tetradium Schmidt, 1874 † accepted as Palaenigma Walcott, 1885 † · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Conulariida (Order) > Conulariida (awaiting allocation) (Family)
 Tetradium Dulac, 1867 accepted as Rhodiola Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)

Tetraechma
     Tetraechma Blanchard, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tetraechma Agassiz, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tetraedroides
     Tetraedroides B.M. Griffiths, 1923 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)
     Tetraedroides Kützing, 1845 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)

Tetraëdroides
 Tetraëdroides Kützing, 1845 † accepted as Tetraedroides Kützing, 1845 † · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)
 Tetraëdroides B.M. Griffiths, 1923 accepted as Tetraedroides B.M. Griffiths, 1923 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)

Tetrafeaella
 Tetrafeaella Murthy & Ananthakrishnan, 1977 accepted as Feaella Ellingsen, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Feaellidae (Family)
     Tetrafeaella Beier, 1955 accepted as Tetrafeaella Murthy & Ananthakrishnan, 1977 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Feaellidae (Family)

Tetrafossularia
     Tetrafossularia Iwanowski, 1988 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Tetrafossularia Ivanovsk, 1992 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)

Tetraglossa
 Tetraglossa Champion, 1897 accepted as Anchytarsus Guérin-Méneville, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptilodactylidae (Family)
 Tetraglossa R.H. Beddome, 1861 accepted as Cleidion Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Tetragnatha
     Tetragnatha Walckenaer, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Tetragnathidae (Family)
     Tetragnatha Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Tetragnathidae (Family)

Tetragona
     Tetragona Lepeletier, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Tetragona Dejean, 1833 accepted as Tetragonus Gory & Percheron, 1834 (misspelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tetragoneura
     Tetragoneura Winnertz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
 Tetragoneura Selys, 1870 accepted as Tetragoneuria Hagen, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Corduliidae (Family)

Tetragonia
     Tetragonia Desutter-Grandcolas, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
     Tetragonia Hagen, 1849 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Tetragonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Tetragonidium
     Tetragonidium Pascher, 1914 · Chromista (Kingdom) > Cryptista (Phylum) > Cryptophyceae (Class) > Tetragonidiales (Order) > Tetragonidiaceae (Family)
     Tetragonidium Bode, 1953 † accepted as Tetrafulgoria Doweld, 2013 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Fulgoridiidae (Family)

Tetragonites
     Tetragonites Kossmat, 1895 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
 Tetragonites Kittl, 1904 † accepted as Entogonites Kittl, 1904 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Entogonitidae (Family)

Tetragonocarpus
     Tetragonocarpus Hasskarl, 1857 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Tetragonocarpus E.O. Novik, 1951 † accepted as Novikocarpus A.B. Doweld, 2000 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pachytestales (Order) > Pachytestales (awaiting allocation) (Family)

Tetragonoderus
     Tetragonoderus Dejean, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tetragonoderus Dejean, 1821 accepted as Tetragonoderus Dejean, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tetragonolepis
     Tetragonolepis Bronn, 1830 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Dapediiformes (Order) > Dapediidae (Family)
 Tetragonolepis Agassiz, 1833 † accepted as Tetragonolepis Bronn, 1830 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Dapediiformes (Order) > Dapediidae (Family)

Tetragonops
     Tetragonops Gerstaecker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tetragonops Jardine, 1855 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Piciformes (Order) > Ramphastidae (Family)

Tetragonopterus
     Tetragonopterus Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
     Tetragonopterus Perroud & Montrouzier, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Tetragonopterus Bleeker, 1863 accepted as Chaetodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)

Tetragonoptrus
     Tetragonoptrus Klein, 1776 accepted as Tetragonoptrus Klein, 1776 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)
 Tetragonoptrus Walbaum (ex Klein), 1792 accepted as Chaetodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)

Tetragonurus
     Tetragonurus Eisen, 1874 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Lumbricidae (Family)
     Tetragonurus Risso, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Tetragonuridae (Family)

Tetragonus
     Tetragonus Geyer in Hübner, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Callidulidae (Family)
     Tetragonus Gory & Percheron, 1834 accepted as Agestrata Eschscholtz, 1829 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tetragramma
     Tetragramma L. Agassiz, 1838 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Diplopodiidae (Family)
     Tetragramma Ehrenberg, 1843 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Biddulphiales (Order) > Biddulphiaceae (Family)

Tetragrapsus
 Tetragrapsus Salter, 1863 † accepted as Tetragrapsus Salter, 1863 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Graptoloidea (Order) > Dichograptidae (Family)
     Tetragrapsus Rathbun, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Varunidae (Family)

Tetrahit
 Tetrahit Moench, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Tetrahit Gérard, 1761 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Tetrakentron
 Tetrakentron A. Pascher, 1937 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)
     Tetrakentron Cuénot, 1892 · Animalia (Kingdom) > Tardigrada (Phylum) > Heterotardigrada (Class) > Arthrotardigrada (Order) > Styraconyxidae (Family)

Tetralepis
     Tetralepis Steudel, 1855 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Tetralepis Böttger, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Tetralichas
     Tetralichas Phleger, 1936 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tetralichas Weber, 1951 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tetralicia
     Tetralicia Harrison, 1917 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aleyrodidae (Family)
 Tetralicia Aurivillius, 1923 accepted as Egalicia Lane, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetralinus
 Tetralinus Bordoni, 1975 accepted as Xantholinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tetralinus Bordoni, 1972 accepted as Xantholinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tetralites
     Tetralites Mironova, 1970 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)
     Tetralites Bondarenko, 1980 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Tabulata (awaiting allocation) (Family)

Tetralix
     Tetralix Grisebach, 1866 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Tetralix J. Hill, 1762 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tetralix Zinn, 1757 accepted as Tetralix Zinn, 1757 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Tetraloba
     Tetraloba Alvarez, Rong & Boucot, 1998 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Athyridida (Order) > Athyrididae (Family)
     Tetraloba Lee, 1983 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)

Tetralobus
 Tetralobus Alph. de Candolle, 1844 accepted as Utricularia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lentibulariaceae (Family)
     Tetralobus Lepeletier & Serville in Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Tetralopha
     Tetralopha Zeller, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tetralopha J.D. Hooker, 1870 accepted as Gynochtodes Blume, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Tetramastix
 Tetramastix A. Alexieff, 1916 accepted as · Chromista (Kingdom) > Bigyra (Phylum) > Opalinea (Class) > Proteromonadida (Order) > Proteromonadidae (Family)
 Tetramastix Korshikov, 1925 accepted as Provasoliella A.R. Loeblich III, 1967 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlamydomonadaceae (Family)
 Tetramastix Zacharias, 1898 accepted as Filinia Bory De St. Vincent, 1824 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Flosculariaceae (Order) > Trochosphaeridae (Family)

Tetrameres
     Tetrameres Barrande, 1867 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tetrameres Creplin, 1846 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Tetrameridae (Family)
     Tetrameres Gubanov, 1950 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
 Tetrameres Schaufuss, 1877 accepted as Edaphus Motschulsky, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tetramerium
     Tetramerium C.G.D. Nees in Bentham, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Tetramerium C.F. Gaertner, 1806 accepted as Faramea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Tetramerocrinites
     Tetramerocrinites Austin, 1843 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)
     Tetramerocrinites Austin, 1842 † accepted as Tetramerocrinites Austin, 1843 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Tetramicra
     Tetramicra J. Lindley, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tetramicra Matthews & Matthews, 1980 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Glugeida (Order) > Spragueidae (Family)

Tetranema
 Tetranema Cossmann, 1912 † accepted as Tetranema Cossmann, 1912 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
     Tetranema Bentham, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
 Tetranema J.E. Areschoug, 1850 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Tetranema Haeckel, 1879 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Halopterididae (Family)
 Tetranema Fraser, 1937 accepted as Astrolabia Naumov, 1955 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Halopterididae (Family)

Tetraneura
     Tetraneura Hartig in Germar, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Tetraneura Konow, 1905 accepted as Tetraneura Konow, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Tetraneurella
 Tetraneurella Dahl, 1909 † accepted as Stilpon Loew, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hybotidae (Family)
 Tetraneurella Hille Ris Lambers, 1970 accepted as Tetraneura Hartig in Germar, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Tetranevra
 Tetranevra Agassiz, 1846 accepted as Tetraneura Hartig in Germar, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Tetranevra Selys, 1859 accepted as Devadatta Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Devadattidae (Family)

Tetranosis
 Tetranosis Medvedev, 1995 accepted as Microtelopsis Koch, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tetranosis Löbl & Merkl, 2003 accepted as Tetranosis Koch, 1940 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tetranosis Koch, 1940 accepted as Tetranosis Medvedev, 1995 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tetraodon
     Tetraodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)
     Tetraodon Broili & Schröder, 1936 † accepted as Sycosaurus Haughton, 1924 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Gorgonopidae (Family)

Tetraonyx
     Tetraonyx Latreille in Humboldt & Bonpland, 1809 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)
     Tetraonyx Gray, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Geoemydidae (Family)

Tetraopes
     Tetraopes Schönherr, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetraopes Kirby, 1826 accepted as Tetrops Kirby, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetraophthalmus
 Tetraophthalmus Kellogg, 1896 accepted as Piagetiella Neumann, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Menoponidae (Family)
 Tetraophthalmus Lesson, 1831 accepted as Chiasognathus Stephens, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Tetraophthalmus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetraophthalmus Guérin-Méneville, 1844 accepted as Tetraophthalmus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tetraophthalmus Burmeister, 1847 accepted as Tetraophthalmus Lesson, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)

Tetrapedia
     Tetrapedia Klug, 1810 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Tetrapedia Reinsch, 1866 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)

Tetraphala
     Tetraphala Sturm, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
     Tetraphala Chevrolat in Dejean, 1836 accepted as Tetraphala Sturm, 1843 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Tetraphana
     Tetraphana Skuse, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tetraphana Ragonot, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tetraphis
     Tetraphis Horváth, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tetraphis J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Tetraphidopsida (Class) > Tetraphidales (Order) > Tetraphidaceae (Family)

Tetraphleps
     Tetraphleps Fieber, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Anthocoridae (Family)
 Tetraphleps Hampson, 1893 accepted as Tetraphleba Strand, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Limacodidae (Family)

Tetraphora
 Tetraphora Laseron, 1958 accepted as Costatophora B. A. Marshall, 1994 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Triphoridae (Family)
     Tetraphora Philippi, 1865 accepted as Forcipomyia Meigen, 1818 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ceratopogonidae (Family)

Tetraphyllum
     Tetraphyllum Ludwig, 1865 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tetraphyllum W. Griffith ex C.B. Clarke in Alph. de Candolle & A.C. de Candolle, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Tetraphyllum Hosius & von der Marck, 1880 † (uncertain)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)

Tetrapion
     Tetrapion Wanat, 2001 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Tetrapion Pascher, 1943 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeothamniophyceae (Class) > Phaeothamniales (Order) > Phaeothamniaceae (Family)

Tetrapleura
     Tetrapleura Schiner, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)
     Tetrapleura Bentham, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Tetrapleura Parlatore in Webb in W.J. Hooker, 1849 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Tetraplodon
     Tetraplodon Spix, 1827 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Tetraplodon Bruch & W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1844 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Splachnales (Order) > Splachnaceae (Family)

Tetrapoma
 Tetrapoma Turczaninow ex F.E.L. Fischer & C.A. Meyer, 1835 accepted as Rorippa Scopoli, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Tetrapoma Levinsen, 1893 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Campanulinidae (Family)

Tetrapora
     Tetrapora Quenstedt, 1858 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)
 Tetrapora Schauer, 1843 accepted as Baeckea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Tetrapora Yabe & Hayasaka, 1915 † accepted as Hayasakaia Lang, Smith & Thomas, 1940 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Auloporida (Order) > Tetraporellidae (Family)

Tetraposthia
     Tetraposthia An der Lan, 1936 · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoelomorpha incertae sedis (Class) > Acoela (Order) > Actinoposthiidae (Family)
     Tetraposthia Steinböck, 1931 accepted as Tetraposthia An der Lan, 1936 (nomen nudum)· Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoelomorpha incertae sedis (Class) > Acoela (Order) > Childiidae (Family)

Tetraprion
     Tetraprion Stejneger, 1891 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)
     Tetraprion Kielan-Jaworowska, 1966 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicemorpha (Order) > Eunicemorpha (awaiting allocation) (Family)

Tetraprothomo
     Tetraprothomo Ameghino, 1907 † accepted as Cyonasua Ameghino, 1885 † (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Procyonidae (Family)
     Tetraprothomo Ameghino, 1884 † accepted as Cyonasua Ameghino, 1885 † (unavailable name)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Procyonidae (Family)

Tetraptera
 Tetraptera A. Rasumov, 1923 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Asteromonadaceae (Family)
 Tetraptera R.A. Philippi, 1870 accepted as Gaya Kunth in Humboldt, Bonpland & Kunth, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Tetrapteron
     Tetrapteron (P.A. Munz) W.L. Wagner & P.C. Hoch, 2007 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Onagraceae (Family)
     Tetrapteron Claus, 1878 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Tetrapterum
     Tetrapterum Hampe in Müller Hal., 1848 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Tetrapterum Hampe ex A.E. Jaeger, 1869 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)

Tetrapturus
     Tetrapturus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Istiophoridae (Family)
     Tetrapturus Cuvier in Cuvier & Valenciennes, 1832 accepted as Tetrapturus Cuvier in Cuvier & Valenciennes, 1832 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Istiophoridae (Family)

Tetrarhynchia
     Tetrarhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Tetrarhynchia Buckman, 1914 † accepted as Tetrarhynchia Buckman, 1917 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Tetrasella
     Tetrasella Gorjunova, 2010 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cryptostomida (Order) > Rhabdomesidae (Family)
     Tetrasella Gorjunova, 2011 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cryptostomida (Order) > Rhabdomesidae (Family)

Tetrasiphon
     Tetrasiphon Ehrenberg, 1840 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Notommatidae (Family)
     Tetrasiphon Urban, 1904 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Tetrasoma
     Tetrasoma A.K.J. Corda, 1839 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Hydrodictyaceae (Family)
 Tetrasoma Swainson, 1839 accepted as Tetrosomus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Ostraciidae (Family)

Tetrasphaera
     Tetrasphaera Maszenan et al., 2000 · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Micrococcales (Order) > Intrasporangiaceae (Family)
     Tetrasphaera Popofsky, 1912 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Tetrasphaera H. Górka, 1965 † accepted as Gorkadinium A.R. Loeblich Jr. & A.R. Loeblich III, 1966 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniphycidae (awaiting allocation) (Order) > Peridiniphycidae (awaiting allocation) (Family)
     Tetrasphaera Wang, 2008 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
 Tetrasphaera B.V. Timofeev & T.N. Hermann in B.S. Sokolov, 1979 † accepted as · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Tetraspinus
     Tetraspinus Boczek, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)
     Tetraspinus Martins-Neto, 1995 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)

Tetraspis
     Tetraspis Hagenmüller, 1885 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tetraspis Chiovenda, 1912 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Tetraspora
     Tetraspora Link ex Desvaux, 1818 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Tetrasporaceae (Family)
     Tetraspora Hallett & Lester, 1999 · Animalia (Kingdom) > Cnidaria (Phylum) > Actinomyxea (Class) > Actinomyxida (Order) > Sphaeractinomyxidae (Family)
 Tetraspora F.A.W. Miquel, 1859 accepted as Baeckea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Tetrastemma
     Tetrastemma Ehrenberg, 1831 · Animalia (Kingdom) > Nemertea (Phylum) > Enopla (Class) > Hoplonemertea (Order) > Tetrastemmatidae (Family)
 Tetrastemma Diels, 1906 accepted as Uvariopsis Engler, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)

Tetraster
     Tetraster Nicholson & Etheridge, 1880 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Tetraster Oshmarin, 1965 accepted as Elongoparorchis Rao, 1961 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Dictysarcidae (Family)

Tetrastichella
     Tetrastichella Girault, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
 Tetrastichella Pichon, 1946 accepted as Cuspidaria A.P. de Candolle, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)

Tetrastichium
     Tetrastichium (Mitten) Cardot, 1908 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hookeriales (Order) > Hookeriaceae (Family)
 Tetrastichium (V.F. Brotherus) M. Fleischer, 1923 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)

Tetrastichus
     Tetrastichus Haliday, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
 Tetrastichus Walker, 1842 accepted as Tetrastichus Haliday, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Tetrastigma
     Tetrastigma (Miquel) Planchon in Alph. de Candolle & A.C. de Candolle, 1887 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Vitales (Order) > Vitaceae (Family)
 Tetrastigma K. Schumann, 1896 accepted as Schumanniophyton Harms in Engler & Prantl, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Tetrastoma
     Tetrastoma Forbes, 1840 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)
     Tetrastoma Chiaje, 1833 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Tetrataxis
     Tetrataxis J.D. Hooker in Bentham & J.D. Hooker, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)
     Tetrataxis Ehrenberg, 1854 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Tetrataxidae (Family)

Tetratheca
     Tetratheca Sysoev, 1968 † · Animalia (Kingdom) > Hyolitha (Phylum) > (Class) > Orthothecida (Order) > Orthothecida (awaiting allocation) (Family)
     Tetratheca J.E. Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Elaeocarpaceae (Family)

Tetrathyrus
     Tetrathyrus Claus, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Platyscelidae (Family)
     Tetrathyrus Creplin, 1851 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cestoda (awaiting allocation) (Order) > Cestoda (awaiting allocation) (Family)

Tetratoma
 Tetratoma Gistl, 1848 accepted as Tetratoma Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
     Tetratoma Signoret, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Tetratoma Cameron, 1890 accepted as Tetratoma Cameron, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tetratoma Fabricius, 1790 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tetratomidae (Family)
     Tetratoma Bütschli in Bronn, 1884 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlamydomonadaceae (Family)

Tetrax
     Tetrax Forster, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Gruiformes (Order) > Otididae (Family)
     Tetrax Leach, 1816 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tetrisia
     Tetrisia Walker, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Plataspidae (Family)
 Tetrisia Walker, 1867 [2] accepted as Tritesia Bernal, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Tetrix
     Tetrix Morris in Wood, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tetrix Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Tetrodon
     Tetrodon Ameghino, 1882 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Tetrodon M.A. Clements & D.L. Jones, 1998 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tetrodon Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)

Tetromatus
 Tetromatus Bate, 1857 accepted as Ampelisca Krøyer, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampeliscidae (Family)
     Tetromatus Bate, 1856 accepted as Ampelisca Krøyer, 1842 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Ampeliscidae (Family)

Tetromma
 Tetromma Keyserling, 1878 accepted as Josa Keyserling & Marx, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Anyphaenidae (Family)
     Tetromma Dejean, 1834 accepted as Hyperops Eschscholtz, 1831 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tetrophthalmus
 Tetrophthalmus Laporte, 1840 accepted as Tetrophthalmus Laporte, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Tetrophthalmus Kirby, 1827 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Tetrophthalmus Grosse, 1885 accepted as Piagetiella Neumann, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Menoponidae (Family)

Tetrops
     Tetrops Kirby, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tetrops Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tetropthalmus
 Tetropthalmus Hope, 1845 accepted as Tetropthalmus Hope, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
 Tetropthalmus Kellogg, 1889 accepted as Piagetiella Neumann, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Menoponidae (Family)

Tetrura
 Tetrura Lesson, 1844 accepted as Tetrura Lesson, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tetrura Lichtenstein, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Tettigonia
     Tettigonia Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Tettigonia Fabricius, 1775 accepted as Cicadella Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Tettix
     Tettix Kirby & Spence, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tettix Dalman, 1823 accepted as Tetrix Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Tetyra
     Tetyra Fabricius, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Scutelleridae (Family)
 Tetyra Blyth in Blyth, 1840 accepted as Tityra Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)

Teuthis
     Teuthis Browne, 1789 accepted as Teuthis Browne, 1789 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
 Teuthis Schneider, 1784 accepted as Acroteuthis Berry, 1913 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Myopsida (Order) > Loliginidae (Family)
 Teuthis Linnaeus, 1766 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)

Teuthopsis
 Teuthopsis Wagner, 1859 † accepted as Palaeololigo Naef, 1921 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Myopsida (Order) > Loliginidae (Family)
 Teuthopsis Herrmannsen, 1849 † accepted as Teudopsis Eudes-Deslongchamps, 1835 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octobrachia (Order) > Teudopseidae (Family)

Teutonia
     Teutonia Koenike, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Teutoniidae (Family)
     Teutonia Opitz, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Teutonia Nordenskiöld, 1905 accepted as Nilotonia Thor, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Nilotoniidae (Family)
 Teutonia Verhoeff, 1910 accepted as Dilta Strand, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Archaeognatha (Order) > Machilidae (Family)

Tewoella
     Tewoella Ding & Li, 1987 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Praecardioida (Order) > Praecardioida (awaiting allocation) (Family)
     Tewoella Sun, 1979 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Boultoniidae (Family)

Texania
     Texania Casey, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Texania Pohler, 1994 † accepted as Pohlerodus Zhen, 2023 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Prioniodontida (Order) > Periodontidae (Family)
     Texania Palmer, 1937 † accepted as Texmelanatria Palmer, 1942 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Cerithiidae (Family)

Texasia
     Texasia Reeside, 1932 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Texasia Cooper & Grant, 1969 † accepted as Texarina Cooper & Grant, 1970 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Cryptonellidae (Family)

Textor
     Textor Lichtenstein, 1823 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Textor Temminck in Temminck & Laugier, 1827 accepted as Ploceus Cuvier, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Passeridae (Family)

Textrix
     Textrix Sundevall, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)
 Textrix Römer, 1857 † accepted as Paphia Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Teysmannia
     Teysmannia F.A.W. Miquel, 1857 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Teysmannia H.G.L. Reichenbach & Zollinger in Zollinger, 1858 accepted as Johannesteijsmannia H.E. Moore, 1961 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Thaerocythere
     Thaerocythere Hazel, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Thaerocytheridae (Family)
     Thaerocythere Liebau, 1991 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Thaerocytheridae (Family)

Thaia
     Thaia Ghauri, 1962 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Thaia G. Seidenfaden, 1975 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Thailandia
     Thailandia Bílý, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Thailandia S. Vardhanabhuti, 1959 accepted as Candida Berkhout, 1923 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetales incertae sedis (Family)

Thais
     Thais Haliday in Curtis, 1838 accepted as Thais Haliday in Curtis, 1838 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thais Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Thais Fabricius, 1807 accepted as Parnalius Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Thaites
     Thaites Scudder, 1875 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)
     Thaites Heer, 1861 † accepted as Thaites Scudder, 1875 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)
     Thaites de Saporta, 1872 † accepted as Thaites Scudder, 1875 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Thalamarchis
     Thalamarchis Meyrick, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Thalamarchis Meyrick, 1904 accepted as Thalamarchella Fletcher, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Depressariidae (Family)

Thalamia
 Thalamia Hentz, 1850 accepted as Oecobius Lucas, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Oecobiidae (Family)
 Thalamia K.P.J. Sprengel, 1817 accepted as Phyllocladus Mirbel, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Araucariales (Order) > Podocarpaceae (Family)

Thalanessa
 Thalanessa Chamberlin, 1919 accepted as Thalenessa Baird, 1868 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)
 Thalanessa Baird emend McIntosh, 1885 accepted as Thalenessa Baird, 1868 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)

Thalassema
     Thalassema Ranzani, 1817 accepted as Thalassema Ranzani, 1817 (nomen dubium)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sternaspida (Order) > Sternaspidae (Family)
     Thalassema Lamarck, 1801 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiurida (Order) > Echiuridae (Family)
     Thalassema Pallas, 1771 accepted as Thalassema Lamarck, 1801 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiurida (Order) > Echiuridae (Family)

Thalassia
 Thalassia Bonaparte, 1856 accepted as Thalassia Bonaparte, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Thalassia Banks ex König, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)
 Thalassia Gistl, 1848 accepted as Bonellia Rolando, 1821 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Bonelliida (Order) > Bonelliidae (Family)
 Thalassia Hutton, 1884 accepted as Thalassohelix Pilsbry, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
 Thalassia Martens, 1860 accepted as Nitor Gude, 1911 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicarionidae (Family)
     Thalassia Chevrolat in Dejean, 1836 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Thalassina
     Thalassina Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Thalassinidae (Family)
     Thalassina Montague, 1815 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Echiura (awaiting allocation) (Order) > Echiura (awaiting allocation) (Family)

Thalassionema
     Thalassionema Grunow ex Mereschkowsky, 1902 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Thalassionematales (Order) > Thalassionemataceae (Family)
 Thalassionema (H. Peragallo & M. Peragallo) M. Peragallo, 1921 accepted as Thalassionema Grunow ex Mereschkowsky, 1902 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Thalassionematales (Order) > Thalassionemataceae (Family)

Thalassites
 Thalassites Quenstedt, 1843 accepted as Thalassites Quenstedt, 1843 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thalassites Swainson, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Thalassites A. Benzecry & S.D. Brack-Hanes, 2008 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Hydrocharitaceae (Family)

Thalassobius
     Thalassobius Arahal, Macian, Garay & Pujalte, 2005 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhodobacterales (Order) > Rhodobacteraceae (Family)
     Thalassobius Solier in Gay, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Thalassocrinus
     Thalassocrinus A.H. Clark, 1911 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Millericrinida (Order) > Hyocrinidae (Family)
     Thalassocrinus Wanner, 1916 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Thalassodendron
     Thalassodendron den Hartog, 1970 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Cymodoceaceae (Family)
 Thalassodendron Lendenfeld, 1888 accepted as Clathria Schmidt, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Microcionidae (Family)

Thalassomedon
     Thalassomedon Welles, 1943 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Plesiosauria (Order) > Elasmosauridae (Family)
 Thalassomedon Lecoq, 1987 accepted as Hexamedon Lecoq, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thalassomora
     Thalassomora Lendenfeld, 1887 accepted as Thalassomora Lendenfeld, 1887 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Thalassomora Lendenfeld, 1888 accepted as Ecionemia Bowerbank, 1862 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Thalassophthirius
     Thalassophthirius Bartsch, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)
     Thalassophthirius Behan-Pelletier, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)

Thalassoplancta
 Thalassoplancta Haeckel, 1867 accepted as Thalassorhaphis Campbell, 1951 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Collodaria (Order) > Thalassosphaeridae (Family)
 Thalassoplancta Haeckel, 1862 accepted as Cannorrhaphis Haeckel, 1887 · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Eodarida (Order) > Aulacanthidae (Family)

Thalassus
 Thalassus Boie, 1833 accepted as Thalassus Boie, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Ciconiiformes (Order) > Laridae (Family)
 Thalassus Oken, 1815 accepted as Thalassus Oken, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thalenessa
 Thalenessa Baird, 1868 accepted as Sigalion Audouin & Milne Edwards in Cuvier, 1830 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)
 Thalenessa McIntosh, 1885 accepted as Euthalenessa Darboux, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Sigalionidae (Family)

Thalessa
     Thalessa H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Thalessa Holmgren, 1859 accepted as Megarhyssa Ashmead, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Thalestris
     Thalestris Claus, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Thalestridae (Family)
     Thalestris Gistl, 1868 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Thalestris Lindholm, 1913 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Thalestris Rizzini, 1952 accepted as Justicia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Thalia
 Thalia Agassiz, 1862 accepted as Thalia Agassiz, 1862 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Thalia Bruguière, 1791 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thalia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Marantaceae (Family)
     Thalia Blumenbach, 1798 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)
 Thalia Hope, 1838 accepted as Feronia Latreille, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Thalis
     Thalis Cuvier, 1798 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Thalis Lamarck, 1801 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Thallograptus
     Thallograptus Ruedemann, 1925 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Dendroidea (Order) > Dendroidea (awaiting allocation) (Family)
 Thallograptus Öpik, 1928 † accepted as Hormograptus Öpik, 1930 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Crustoidea (Order) > Hormograptidae (Family)

Thallusia
 Thallusia Hartmeyer, 1908 accepted as Phallusia Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
 Thallusia Savigny, 1816 accepted as Phallusia Savigny, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)

Thalpophila
     Thalpophila Borzì, 1907 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Hapalosiphonaceae (Family)
     Thalpophila Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Thalpophila Dejean, 1834 accepted as Thalpophila Solier, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Thalpophila Solier, 1835 accepted as Thalpophilodes Strand, 1942 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thamnidium
     Thamnidium Link ex Wallroth in Bluff & Fingerhuth, 1833 · Fungi (Kingdom) > Zygomycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)
 Thamnidium Tuckerman ex Schwendener, 1860 accepted as Lichina C.A. Agardh, 1817 · Fungi (Kingdom) > Ascomycota (Phylum) > Lichinomycetes (Class) > Lichinales (Order) > Lichinaceae (Family)
 Thamnidium Thuret in Le Jolis, 1863 accepted as Rhodochorton Nägeli, 1862 '1861' · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Acrochaetiales (Order) > Rhodochortonaceae (Family)

Thamnites
 Thamnites Jovet-Ast & Huard, 1967 † accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Neckeraceae (Family)
     Thamnites P.F. Reinsch, 1881 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Thamnium
 Thamnium Klotzsch, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Thamnium W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1852 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Rhizogoniales (Order) > Aulacomniaceae (Family)
 Thamnium Ventenat, 1799 accepted as Roccella A.P. de Candolle in Lamarck & A.P. de Candolle, 1805 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)

Thamnobius
     Thamnobius Fitzinger, 1843 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Thamnobius Schönherr, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thamnocarpus
 Thamnocarpus Kützing, 1843 accepted as Plocamium J.V.F. Lamouroux, 1813 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Plocamiales (Order) > Plocamiaceae (Family)
 Thamnocarpus Harvey, 1844 accepted as Carpothamnion Kützing, 1849 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Ceramiaceae (Family)

Thamnocephalus
     Thamnocephalus Packard, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Sphyriidae (Family)
 Thamnocephalus Diebakate, Raibaut & Kabata, 1997 accepted as Driocephalus Raibaut, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Siphonostomatoida (Order) > Sphyriidae (Family)

Thamnocharis
     Thamnocharis W.T. Wang, 1981 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
     Thamnocharis Sclater, 1890 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Formicariidae (Family)

Thamnonema
     Thamnonema Sollas, 1883 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Thamnonema Ijima, 1927 † accepted as Thamnonemiella Tabachnick & Menshenina in Hooper & Van Soest, 2002 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Amphidiscosida (Order) > Hyalonematidae (Family)

Thamnonoma
     Thamnonoma Lederer, 1853 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Thamnonoma (Tuckerman) Gyelnik, 1933 accepted as Caloplaca Th. Fries, 1860 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Teloschistaceae (Family)

Thamnophilus
     Thamnophilus Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Thamnophilidae (Family)
 Thamnophilus Schönherr, 1823 accepted as Magdalis Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thamnophthorus
 Thamnophthorus Blackman, 1942 accepted as Araptus Eichoff, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Thamnophthorus Schedl, 1938 accepted as Thamnophthorus Blackman, 1942 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thamnopora
     Thamnopora Steininger, 1831 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Pachyporidae (Family)
     Thamnopora Hall, 1883 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)

Thamnopteris
 Thamnopteris (K.B. Presl) K.B. Presl, 1851 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)
     Thamnopteris A.T. Brongniart in A.C.V.D. d'Orbigny, 1849 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Osmundales (Order) > Osmundaceae (Family)

Thamnoscelis
     Thamnoscelis Meyrick, 1928 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)
 Thamnoscelis Meyrick, 1935 accepted as Isothamnis Meyrick, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)

Thamnoseris
     Thamnoseris Fromentel, 1861 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Latomeandridae (Family)
     Thamnoseris F. Philippi, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thamnus
     Thamnus Fieber, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Thamnus Klotzsch, 1838 accepted as Erica Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Thanasimus
     Thanasimus Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Thanasimus Spinola in Gay, 1849 accepted as Eurymetopum Blanchard in d'Orbigny, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)

Thaparotrema
     Thaparotrema Gupta & Krishna, 1977 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monogenea (awaiting allocation) (Order) > Monogenea (awaiting allocation) (Family)
     Thaparotrema Dayal & Gupta, 1953 accepted as Thaparotrema Dayal & Gupta, 1953 (nomen nudum)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Thaparotrema Gupta, 1955 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Thaparotrema Gutpa & Krishna, 1982 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Mazocraeidea (Order) > Axinidae (Family)

Thapsia
     Thapsia Martens, 1860 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thapsia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thapsia Monterosato, 1884 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
     Thapsia Robineau-Desvoidy, 1863 accepted as Neaera Robineau-Desvoidy, 1830 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thapsiella
     Thapsiella Gude, 1911 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thapsiella P. Fischer, 1885 accepted as Alvania Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Thargelia
     Thargelia Püngeler, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thargelia Oestlund, 1923 accepted as Aphthargelia Hottes, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Thargelia Godman & Salvin, 1900 accepted as Thargella Godman, 1900 (misspelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)

Tharops
     Tharops Rafinesque, 1815 accepted as Tharops Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tharops Laporte, 1835 accepted as Isorhipis Boisduval & Lacordaire, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Tharops Hübner, 1819 accepted as Menander Hemming, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Tharsis
 Tharsis Jeffreys, 1883 accepted as Cirsonella Angas, 1877 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Skeneidae (Family)
     Tharsis Giebel, 1847 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ascalaboidiformes (Order) > Ascalaboidae (Family)

Thaumalea
     Thaumalea Ruthe, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Thaumaleidae (Family)
 Thaumalea Templeton, 1837 accepted as Vibilia Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Vibiliidae (Family)
     Thaumalea Wagler, 1832 accepted as Chrysolophus Gray, 1833-34 (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)

Thaumantias
 Thaumantias Bonaparte, 1854 accepted as Thaumantias Bonaparte, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Thaumantias Graeffe, 1860 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thaumantias Eschscholtz, 1829 accepted as Clytia Lamouroux, 1812 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Campanulariidae (Family)
 Thaumantias Kirby, 1894 accepted as Thaumantis Hübner, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)

Thaumas
     Thaumas Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thaumas Münster, 1842 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thaumas Ehrenberg, 1832 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Thaumasia
     Thaumasia C.A. Agardh, 1824 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Fucaceae (Family)
     Thaumasia Perty, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)
     Thaumasia Albers, 1850 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thaumasia Westerlund, 1902 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thaumasta
 Thaumasta Gistel, 1848 accepted as Leucosia Weber, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)
 Thaumasta Staudinger in Staudinger & Wocke, 1871 accepted as Athaumasta Hampson, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Thaumastognatha
 Thaumastognatha Monod, 1926 accepted as Thaumastognathia Monod, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Gnathiidae (Family)
 Thaumastognatha Jakobi, 1954 accepted as Leptocaris Scott, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Darcythompsoniidae (Family)

Thaumastomerus
 Thaumastomerus Wollaston, 1861 accepted as Acanthinomerus Boheman, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Thaumastomerus Clark, 1865 accepted as Ajubus Aslam, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thaumastopus
     Thaumastopus Fieber, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Thaumastopus Hartmann, 1899 accepted as Thaumastochirus Hartmann, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thaumastotherium
 Thaumastotherium Kirkaldy, 1908 accepted as Thaumastocoris Kirkaldy, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Thaumastocoridae (Family)
 Thaumastotherium Forster-Cooper, 1913 † accepted as Baluchitherium Forster-Cooper, 1913 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)

Thaumastus
     Thaumastus Stål, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Thaumastus Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Thaumatocephalus
     Thaumatocephalus Heinrich, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Thaumatocephalus Nonveiller & Pavicevic, 2001 accepted as Thaumastocephalus Poggi, Nonveiller, Colla, Pavićević & Rađa, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thaumatocotyle
     Thaumatocotyle Scott, 1904 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monocotylidea (Order) > Monocotylidae (Family)
     Thaumatocotyle Odhner, 1910 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monocotylidea (Order) > Monocotylidae (Family)

Thaumatoessa
     Thaumatoessa Heine, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Thaumatoessa Krøyer, 1845 accepted as Thaumatohessia Giard, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Monstrilloida (Order) > Monstrillidae (Family)
 Thaumatoessa Hesse, 1868 accepted as Thaumatohessia Giard, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Monstrilloida (Order) > Monstrillidae (Family)

Thaumatonema
     Thaumatonema Greville, 1863 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Asterolamprales (Order) > Thaumatonemataceae (Family)
 Thaumatonema Lauterborn, 1896 accepted as Thaumatomastix Lauterborn, 1899 · Chromista (Kingdom) > Cercozoa (Phylum) > Imbricatea (Class) > Thaumatomonadida (Order) > Thaumatomonadidae (Family)

Thaumatophrastus
 Thaumatophrastus Blaisdell, 1927 accepted as Thorictodes Reitter in Harold, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Thaumatophrastus Háva, 2003 accepted as Thorictodes Reitter in Harold, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thaumatopsyllus
     Thaumatopsyllus G.O. Sars, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Thaumatopsyllidae (Family)
     Thaumatopsyllus Scott, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Thaumatura
 Thaumatura Schulz, 1906 accepted as Thaumasura Westwood, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Thaumatura Bonaparte, 1850 accepted as Thaumastura Bonaparte, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Thaumoglossa
 Thaumoglossa Lohse, 1979 accepted as Thaumaglossa Redtenbacher, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Thaumoglossa Chûjo & Ohbayashi, 1970 accepted as Thaumaglossa Redtenbacher, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thaxteria
     Thaxteria P.A. Saccardo, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Nitschkiaceae (Family)
 Thaxteria A. Giard, 1892 accepted as Laboulbenia Montagne & C. Robin in C. Robin, 1853 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Laboulbeniales (Order) > Laboulbeniaceae (Family)
 Thaxteria Fenyes, 1921 accepted as Termitomorpha Wasmann, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thayeria
     Thayeria Eigenmann, 1908 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
 Thayeria Copeland, 1906 accepted as Aglaomorpha H.W. Schott, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)

Thea
     Thea Mulsant, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
 Thea Linnaeus, 1753 accepted as Camellia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Theaceae (Family)
 Thea Scott, 1882 accepted as Phellopsylla Taylor, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Psyllidae (Family)
     Thea Albers, 1850 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)

Theama
     Theama Marcus, 1949 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Theamatidae (Family)
 Theama Hering, 1958 accepted as Heringiana Hayward, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Theano
     Theano Laporte, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
     Theano Robineau-Desvoidy, 1863 accepted as Theano Robineau-Desvoidy, 1863 (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Theca
 Theca Mulsant & Rey, 1860 accepted as Stagetus Wollaston, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Theca Morris in de Strzelecki, 1845 † accepted as Hyolithes Eichwald, 1840 † · Animalia (Kingdom) > Hyolitha (Phylum) > (Class) > Hyolithida (Order) > Hyolithidae (Family)

Thecacerus
     Thecacerus Lacordaire, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Thecacerus Dejean, 1834 accepted as Thecacerus Lacordaire, 1859 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thecaphora
     Thecaphora Charpentier in Burmeister, 1839 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
 Thecaphora Lendenfeld, 1887 accepted as Thecaphora Lendenfeld, 1887 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Polymastiidae (Family)
     Thecaphora Lankester, 1882 accepted as Thecaphora Lankester, 1882 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Thecaphora Fingerhuth, 1836 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Urocystidiales (Order) > Glomosporiaceae (Family)

Thecidium
 Thecidium Sowerby, 1823 accepted as Thecidea Defrance in Cuvier & Brongniart, 1822 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecideidae (Family)
 Thecidium Fischer de Waldheim, 1834 accepted as Thecidea Defrance in Cuvier & Brongniart, 1822 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Thecideidae (Family)

Thecocarpus
     Thecocarpus Boissier, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thecocarpus Nutting, 1900 accepted as Lytocarpia Kirchenpauer, 1872 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Aglaopheniidae (Family)

Thecocyathus
     Thecocyathus Milne Edwarsd & Haime, 1848 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Caryophylliidae (Family)
     Thecocyathus Vologdin, 1964 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > Cribricyathea (Class) > Cribricyathea (awaiting allocation) (Order) > Cribricyathea (awaiting allocation) (Family)

Theconyx
     Theconyx Annandale, 1906 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Theconyx Gray, 1845 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Thecophora
     Thecophora Rondani, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Conopidae (Family)
 Thecophora Agassiz, 1846 accepted as Thecophora Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
 Thecophora Lederer, 1857 accepted as Rileyiana Moucha & Chvála, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thecophora Schmidt, 1870 accepted as Tentorium Vosmaer, 1887 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Polymastiidae (Family)

Thecophyllia
 Thecophyllia Dainelli, 1915 accepted as Meandrina Lamarck, 1801 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Meandrinidae (Family)
 Thecophyllia Milne-Edwards & Haime, 1848 † accepted as Montlivaltia Lamouroux, 1821 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Thecosmiliidae (Family)

Thecophyllum
     Thecophyllum Fomitchev, 1953 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thecophyllum E.F. André, 1889 accepted as Guzmania Ruiz & Pavon, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Thedenia
 Thedenia E.M. Fries, 1842 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Pallaviciniales (Order) > Pallaviciniaceae (Family)
 Thedenia W.P. Schimper in Bruch, W.P. Schimper & Gümbel, 1852 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hypnaceae (Family)

Theelia
 Theelia Ludwig, 1892 accepted as Ceto Gistel, 1848 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Psolidae (Family)
     Theelia Schlumberger, 1890 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Theileriana
     Theileriana Monnig, 1924 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Strongylidae (Family)
 Theileriana Dias, 1963 accepted as Amblyomma Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)

Thelactis
 Thelactis Martius, 1821 accepted as Mucor Fresenius, 1850 · Fungi (Kingdom) > Zygomycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)
     Thelactis Klunzinger, 1877 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniaria incertae sedis (Family)

Thelepides
     Thelepides Gravier, 1911 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)
 Thelepides Southern, 1914 accepted as Parathelepus Caullery, 1915 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Thelia
     Thelia Amyot & Serville, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Thelia Sullivant in Sullivant & Lesquereux, 1856 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Leskeaceae (Family)

Thelidomus
     Thelidomus Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
 Thelidomus Swainson, 1840 [2] accepted as Helicopsyche Bremi in Siebold, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Helicopsychidae (Family)

Theliostoma
     Theliostoma Sowerby, 1824 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Theliostoma Kobelt, 1878 accepted as Theliostyla Mörch, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Neritidae (Family)

Theloderma
     Theloderma Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)
 Theloderma Herrmannsen, 1849 accepted as Theliderma Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)

Thelodus
     Thelodus Schmidt, 1861 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thelodus Agassiz, 1838 † accepted as Thelodus Agassiz in Murchison, 1839 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Thelodontiformes (Order) > Thelodontidae (Family)
     Thelodus Agassiz in Murchison, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Thelodontiformes (Order) > Thelodontidae (Family)

Thelolepis
 Thelolepis Hoppe, 1931 † accepted as Thelolepoides Fowler, 1958 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Pteraspidiformes (Order) > Pteraspididae (Family)
 Thelolepis Pander, 1856 † accepted as Thelodus Agassiz in Murchison, 1839 † · Animalia (Kingdom) > Chordata (Phylum) > Pteraspidomorphi (Class) > Thelodontiformes (Order) > Thelodontidae (Family)

Thelphusa
 Thelphusa Latreille, 1819 accepted as Potamon Savigny, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Potamidae (Family)
 Thelphusa Verrill, 1872 accepted as Thelepus Leuckart, 1849 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Terebellida (Order) > Terebellidae (Family)

Thelxiope
 Thelxiope Thomson, 1864 accepted as Distenia Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Thelxiope Rafinesque, 1814 accepted as Homola Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Homolidae (Family)
     Thelxiope Simonetta & Delle Cave, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Mollisoniida (Order) > Mollisoniidae (Family)

Thelyderma
 Thelyderma Agassiz, 1846 accepted as Theliderma Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
 Thelyderma Agassiz, 1846 [2] accepted as Theloderma Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)

Thelydrias
     Thelydrias Reichenbach, 1853 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Thelydrias Agassiz, 1846 accepted as Thylodrias Motschoulsky, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thelypteris
     Thelypteris Schmidel, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Thelypteridaceae (Family)
 Thelypteris Adanson, 1763 accepted as Pteris Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Thelysia
     Thelysia Gingerich, 1982 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cimolesta (Order) > Pantolestidae (Family)
     Thelysia Salisbury ex Parlatore, 1856 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Themeropis
     Themeropis Pascoe, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Themeropis Koch in Koch (Keyserling), 1875 accepted as Thelcticopis Karsch, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Sparassidae (Family)

Themis
 Themis R.A. Salisbury, 1866 accepted as Triteleia Douglas ex J. Lindley, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Themis N. Sánchez, A. Vergés, J. Sutherland & J. Brodie in Sánchez, Vergés, Peteiro, Sutherland & Brodie, 2014 · Plantae (Kingdom) > Rhodophyta (Phylum) > Bangiophyceae (Class) > Bangiales (Order) > Bangiaceae (Family)

Themisia
     Themisia Velenovský, 1939 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Themisia Zhdanko, 2002 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)

Themisto
     Themisto Oken, 1807 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
     Themisto Guérin, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Hyperiidae (Family)
     Themisto Goodsir, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Mysida (Order) > Mysidae (Family)
     Themisto Oken, 1815 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Thyasiridae (Family)

Themus
 Themus Schulz, 1906 accepted as Themus Schulz, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Themus Motschoulsky, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cantharidae (Family)

Theobaldia
     Theobaldia O. Heer, 1877 † (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Theobaldia Neveu-Lemaire, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Theobaldia Fischer, 1885 accepted as Theobaldius Nevill, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Cyclophoridae (Family)

Theobroma
     Theobroma Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Theobroma Scudder, 1882 accepted as Theobroma Scudder, 1882 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Theocarpus
 Theocarpus Nutting, 1900 accepted as Thecocarpus Nutting, 1900 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Aglaopheniidae (Family)
 Theocarpus Broch, 1903 accepted as Thecocarpus Nutting, 1900 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Plumulariidae (Family)

Theoceras
     Theoceras Kröger, 2008 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Orthoceratidae (Family)
     Theoceras Cheng, 2000 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Theoclia
     Theoclia Pascoe, 1885 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Theoclia Simon, 1892 accepted as Theotima Simon, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Ochyroceratidae (Family)

Theoclytes
     Theoclytes Audinet-Serville, 1838 accepted as Vates Burmeister, 1838 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
 Theoclytes Saussure, 1869 accepted as Phyllovates Kirby, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
 Theoclytes Stål, 1877 accepted as Phyllovates Kirby, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Theodisca
 Theodisca Müller, 1858 accepted as Naineris Blainville, 1828 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Orbiniida (Order) > Orbiniidae (Family)
     Theodisca Harzhauser, Guzhov & Landau, 2023 † accepted as Theodisca Harzhauser, Guzhov & Landau, 2023 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Potamididae (Family)

Theodorea
 Theodorea (Cassini) Cassini in F. Cuvier, 1827 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Theodorea Barbosa Rodrigues, 1877 accepted as Rodrigueziella O. Kuntze, 1891 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Theodoria
     Theodoria Hradsky & Huttinger, 1984 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Theodoria Lehr, 1986 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Theodoria Fell, 1961 accepted as Ophioplinthus Lyman, 1878 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Ophiopyrgidae (Family)

Theone
     Theone Gistel, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Theone Robineau-Desvoidy, 1863 accepted as Macronychia Rondani, 1859 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Theonoe
     Theonoe Simon, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Theonoe Philippi, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Theope
 Theope Moore in Horsfield & Moore, 1857 accepted as Ethope Moore, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Theope Doubleday, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Theophoba
     Theophoba Fletcher & Nye, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Endromidae (Family)
     Theophoba Mell, 1958 accepted as Theophoba Fletcher & Nye, 1982 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Endromidae (Family)

Theora
     Theora H. Adams & A. Adams, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Semelidae (Family)
     Theora Eyferth, 1877 accepted as Theora Eyferth, 1877 (taxon inquirendum)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera incertae sedis (Class) > (Order) > (Family)

Thera
     Thera Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Thera Hutton, 1883 accepted as Aeschrodomus Pilsbry, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Theraphosa
     Theraphosa Walckenaer, 1805 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theraphosidae (Family)
     Theraphosa Thorell, 1870 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Idiopidae (Family)
 Theraphosa Ausserer, 1871 accepted as Theraphosa Ausserer, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Therapon
     Therapon Parker, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)
 Therapon Cloquet, 1819 accepted as Terapon Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Terapontidae (Family)

Therates
 Therates Agassiz, 1846 accepted as Therates Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Therates Sellards, 1907 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemeroptera (awaiting allocation) (Family)
     Therates Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Therea
     Therea Koch, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Therea Billberg, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Corydiidae (Family)
 Therea Koch & Berendt, 1854 † accepted as Thereola Petrunkevitch, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Dysderidae (Family)

Theresia
 Theresia Spuler, 1906 accepted as Theresimima Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
 Theresia K.H.E. Koch, 1849 accepted as Fritillaria Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
     Theresia Robineau-Desvoidy, 1830 accepted as Billaea Robineau-Desvoidy, 1830 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Theria
     Theria Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Theria Robineau-Desvoidy, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
     Theria Parker & Haswell, 1897 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > (Order) > (Family)

Theridium
     Theridium Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
 Theridium Ashmead, 1900 accepted as Therion Curtis, 1829-30 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Therina
     Therina Meigen, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Therina Hübner, 1826 accepted as Therina Hübner, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Theringia
     Theringia Cossmann, 1899 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Theringia Mello-Leitão, 1927 accepted as Otiothops MacLeay, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Palpimanidae (Family)
 Theringia Lahille, 1899 † accepted as Iheringiella Berg, 1898 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Iheringiellidae (Family)

Theriotia
     Theriotia J. Cardot, 1904 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Buxbaumiales (Order) > Buxbaumiaceae (Family)
 Theriotia J.P. Kociolek, Q. You, J.G. Stepanek, R.L. Lowe & Q. Wang, 2016 accepted as Edtheriotia J.P. Kociolek, Q. You, J.G. Stepanek, R.L. Lowe & Q. Wang, 2016 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Stephanodiscales (Order) > Stephanodiscaceae (Family)

Therius
     Therius Billberg, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Therius Guérin-Méneville, 1849 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Thermia
     Thermia Nuttall, 1818 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Thermia Hutton, 1904 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Thermocharis
 Thermocharis Fauvel, 1871 accepted as Phloeocharis Mannerheim, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thermocharis Ehrenberg, 1858 accepted as Epithemia Kützing, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Rhopalodiales (Order) > Rhopalodiaceae (Family)

Thermonectus
     Thermonectus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
 Thermonectus Melsheimer, 1844 accepted as Thermonectus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Thermophila
     Thermophila Miers, 1872 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
     Thermophila Hübner, 1819 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thermophila Grassi, 1889 accepted as Thermobia Bergroth, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
 Thermophila Hope, 1838 accepted as Anthia Weber, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Thermopsis
     Thermopsis Külköylüoğlu, Meisch & Rust, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cyprididae (Family)
     Thermopsis R. Brown ex W.T. Aiton, 1811 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Thermosipho
     Thermosipho Huber, Woese, Langworthy, Fricke & Stetter, 1989 · Bacteria (Kingdom) > Thermotogae (Phylum) > Thermotogae (Class) > Thermotogales (Order) > Thermotogaceae (Family)
     Thermosipho Kantor, Puillandre, Fraussen, Fedosov & Bouchet, 2013 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Thermus
     Thermus Brock & Freeze, 1969 (Approved Lists, 1980) · Bacteria (Kingdom) > Deinococcus-Thermus (Phylum) > Deinococci (Class) > Thermales (Order) > Thermaceae (Family)
     Thermus Distant, 1909 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Therosa
     Therosa Bonaparte, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Therosa Keyserling in Koch (Keyserling), 1882 accepted as Saitis Simon, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Thersites
     Thersites Bate, 1856 accepted as Thersites Bate, 1856 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
     Thersites Bate, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Amphipoda (awaiting allocation) (Family)
     Thersites Pfeiffer, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
 Thersites Philippi, 1871 accepted as Ogcodes Latreille, 1796 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Acroceridae (Family)
 Thersites Zittel, 1882 † accepted as Thersitea Coquand, 1862 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Thersites Pagenstecher, 1861 accepted as Thersitina Norman, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Ergasilidae (Family)

Thesium
     Thesium Casey, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Thesium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Santalaceae (Family)

Thespidium
     Thespidium F. von Mueller ex Bentham, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thespidium F. von Mueller in W. Landsborough, 1862 accepted as Thespidium F. von Mueller in W. Landsborough, 1862 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thespis
     Thespis A.P. de Candolle, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Thespis Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Thespidae (Family)

Thetaraia
     Thetaraia Jordan, 1925 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Thetaraia Leigh-Sharpe, 1924 accepted as Raja Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)

Thetidites
     Thetidites Mojsisovics, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Thetidites Mojsisovics, 1896 † accepted as Thetidites Mojsisovics, 1897 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Thetis
     Thetis Goodsir, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Thetis Sowerby, 1826 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactromyidae (Family)
     Thetis Oken, 1815 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Thetis Cuvier, 1800 accepted as Thetis Cuvier, 1800 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Thetis C. B. Adams, 1845 accepted as Gouldia C. B. Adams, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Thetis Adams, 1853 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)
 Thetis H. Adams & A. Adams, 1856 accepted as Poromya Forbes, 1844 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Poromyidae (Family)
     Thetis de Wever, 1982 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
 Thetis Viator, 1838 accepted as Thetis Viator, 1838 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Thetys
     Thetys Philippi, 1836 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thetys Tilesius, 1802 · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)
 Thetys Reichenbach, 1842 accepted as Tethys Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tethydidae (Family)

Theutis
 Theutis Bloch, 1794 accepted as Teuthis Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Siganidae (Family)
 Theutis Bonnaterre, 1788 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Siganidae (Family)

Thevetia
     Thevetia Linnaeus, 1758 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Thevetia Vellozo, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Thevetia Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Thia
 Thia Oken, 1815 accepted as Thia Oken, 1815 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Amphinomida (Order) > Amphinomidae (Family)
     Thia Leach, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Thiidae (Family)
     Thia Edwards, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Glyphipterigidae (Family)
     Thia Newman, 1840 accepted as Methia Newman, 1842 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thianella
     Thianella Strand, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Thianella Schenkel, 1963 accepted as Tasa Wesolowska, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Thiara
     Thiara Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
     Thiara Menke, 1828 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thiarella
 Thiarella Jickeli, 1883 accepted as Thiarella Jickeli, 1883 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Thiarella Sacco, 1890 † accepted as Crenisutura Cossmann, 1899 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
 Thiarella Swainson, 1840 accepted as Tiarella Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Mitridae (Family)

Thicolia
     Thicolia Gray, 1840 accepted as Thicolia Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Thicolia Leach, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thielea
 Thielea Tesch, 1913 accepted as Thielea Tesch, 1913 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Limacinidae (Family)
     Thielea Strebel, 1908 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Limacinidae (Family)

Thilmanus
     Thilmanus Baudi, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Omalisidae (Family)
     Thilmanus Gemminger in Gemminger & Harold, 1869 accepted as Thilmanus Baudi, 1872 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Omalisidae (Family)

Thimna
     Thimna Giebel, 1856 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thimna Bergh, 1905 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thinaecia
 Thinaecia Mulsant & Rey, 1874 accepted as Hydrosmecta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thinaecia Mulsant & Rey, 1873 accepted as Hydrosmecta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thinobius
     Thinobius Kiesenwetter, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Thinobius Walker (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Thinophilus
     Thinophilus Wahlberg, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
 Thinophilus Rey, 1879 accepted as Thinobius Kiesenwetter, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thinotherium
     Thinotherium Cope, 1870 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tayassuidae (Family)
     Thinotherium Marsh, 1872 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Helohyidae (Family)

Thiodia
     Thiodia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Thiodia J.J. Bennett in J.J. Bennett & R. Brown, 1840 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Thiosphaera
 Thiosphaera Robertson & Kuenen, 1984 accepted as Paracoccus Davis, 1969 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhodobacterales (Order) > Rhodobacteraceae (Family)
 Thiosphaera Miyoshi, 1897 accepted as Thiocystis Winogradsky, 1888 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Gammaproteobacteria (Class) > Chromatiales (Order) > Chromatiaceae (Family)

Thisbe
     Thisbe Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
 Thisbe Agassiz, 1846 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thlaspidium
 Thlaspidium P. Miller, 1754 accepted as Biscutella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Thlaspidium (V.I. Lipsky) M.R. Rassulova, 1978 accepted as Astragalus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Thlaspidium Bubani, 1901 accepted as Thlaspi Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Thlipsogaster
     Thlipsogaster Coquillett, 1894 accepted as Bombylius Linnaeus, 1758 (misapplication)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Thlipsogaster Rondani, 1863 accepted as Amictus Wiedemann, 1817 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Thlipsurina
     Thlipsurina Bassler, 1941 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Metacopida (Order) > Metacopida (awaiting allocation) (Family)
 Thlipsurina Kummerow, 1953 † accepted as Krausellina Krandijevsky, 1968 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)

Thlypsogaster
     Thlypsogaster Rondani, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
     Thlypsogaster Rondani, 1863 accepted as Thlipsogaster Rondani, 1863 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Thoa
     Thoa Aublet, 1775 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Gnetopsida (Class) > Gnetales (Order) > Gnetaceae (Family)
     Thoa Takagi, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Thoa Lamouroux, 1816 accepted as Halecium Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Haleciidae (Family)
 Thoa Johnston, 1816 accepted as Halecium Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Haleciidae (Family)

Thoe
 Thoe Kinberg, 1866 accepted as Syllis Savigny in Lamarck, 1818 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Syllidae (Family)
     Thoe Chun, 1879 · Animalia (Kingdom) > Ctenophora (Phylum) > Tentaculata (Class) > Cydippida (Order) > Cydippida incertae sedis (Family)
 Thoe Wright, 1859 accepted as Actinothoe Fischer, 1889 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Sagartiidae (Family)
     Thoe Bell, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Mithracidae (Family)

Tholaster
     Tholaster Seunes, 1891 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Holasteroida (Order) > Stegasteridae (Family)
 Tholaster Spencer, 1913 † accepted as Tholaster Spencer, 1913 † · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Asteroidea (awaiting allocation) (Order) > Asteroidea (awaiting allocation) (Family)

Tholostoma
     Tholostoma Iredale, 1958 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Turbinidae (Family)
     Tholostoma Laseron, 1958 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Skeneidae (Family)

Tholus
     Tholus Lesson, 1837 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tholus Strebel, 1909 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)
     Tholus Pegel in Gintsinger, Fefelov, Vinkman, Tarnovsky, Zhuravleva & Pegel, 1986 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Thomasella
     Thomasella Fredericks, 1928 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Overtoniidae (Family)
 Thomasella Paul, 1942 † accepted as Argentiproductus Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productellidae (Family)
     Thomasella Sirel, 1998 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Loftusiida (Order) > Spirocyclinidae (Family)
     Thomasella Santos-Silva, Bezark & Martins, 2012 accepted as Neothomasella Santos-Silva & Bezark, 2018 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thomasia
     Thomasia Lambert, 1918 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Thomasia Pagliano & Scaramozzino, 1989 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Thomasia Poche, 1908 † · Animalia (Kingdom) > Chordata (Phylum) > Mammaliaformes incertae sedis (Class) > Haramiyida (Order) > Haramiyidae (Family)
     Thomasia J. Gay, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Thomasia Rübsaamen, 1910 accepted as Thomasiniana Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Thomasia Wilson, 1910 accepted as Thomasiniellula Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Thomasia Fredericks, 1928 † accepted as Argentiproductus Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Leioproductidae (Family)

Thomasina
     Thomasina Newstead & Carter, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Thomasina Paeckelmann, 1931 † accepted as Argentiproductus Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Leioproductidae (Family)
 Thomasina Bigot, 1927 † accepted as Tomasina Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)

Thomasites
     Thomasites Pervinquière, 1907 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Thomasites Bek, Pšenička, Drábková, Zhou & Wang, 2023 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > (Order) > (Family)

Thomassetia
     Thomassetia Théry, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Thomassetia Hemsley, 1902 accepted as Brexia Noronha ex L.M.A.A. Du Petit-Thouars, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Thomastus
     Thomastus Öpik, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Illaenidae (Family)
 Thomastus Jousseaume, 1887 accepted as Thaumastus Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)

Thompsonella
     Thompsonella N.L. Britton & J.N. Rose, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
     Thompsonella Skinner & Wilde, 1965 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Fusulinidae (Family)

Thompsonia
     Thompsonia Kossmann, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Akentrogonida (Order) > Thompsoniidae (Family)
 Thompsonia Pilsbry, 1888 accepted as Thompsonia Pilsbry, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thompsonia R. Brown, 1821 accepted as Deidamia Du Petit-Thouars, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)
 Thompsonia Uchida, 1953 accepted as Philoceanus Kellogg, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Philopteridae (Family)

Thompsoniella
     Thompsoniella Guimarães, 1977 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Thompsoniella Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thomsenia
     Thomsenia Panning, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Thomsenia Strebel, 1910 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Thomsonia
     Thomsonia Konow, 1884 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Thomsonia Ancey, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Thomsonia Jackson, 1916 † accepted as Coptothyris Jackson, 1918 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Laqueidae (Family)
 Thomsonia Signoret, 1879 accepted as Hecalus Stål, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
 Thomsonia K. Mädler, 1954 † accepted as Paxillitriletes J.W. Hall & D.H. Nicolson, 1973 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Thomsonia Wallich, 1830 accepted as Amorphophallus Blume ex Decaisne, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)

Thomsoniella
     Thomsoniella Mercet, 1921 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Thomsoniella Signoret, 1880 accepted as Hecalus Stål, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Thonia
     Thonia Stockmans & Willière, 1955 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Thonia Halik, 1941 accepted as Hygrobates Koch in Panzer, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hygrobatidae (Family)

Thonius
     Thonius Lacordaire, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Thonius Lehtinen, 1981 accepted as Hammenius Lehtinen, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Holothyrida (Order) > Holothyridae (Family)

Thoosa
     Thoosa Hancock, 1849 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Thoosidae (Family)
 Thoosa Kinberg, 1865 accepted as Nereis Linnaeus, 1758 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Nereididae (Family)

Thopeutica
     Thopeutica Schaum, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)
 Thopeutica Rivalier, 1961 accepted as Thopeutica Schaum, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Thoracites
     Thoracites Brauer & Bergenstamm, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhiniidae (Family)
 Thoracites Thorell, 1898 accepted as Thorellina Berg, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Thoracodonia
 Thoracodonia Cameron, 1950 accepted as Zyras Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracodonia Bernhauer, 1928 accepted as Zyras Stephens, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thoracophorus
     Thoracophorus Motschulsky, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracophorus Erichson, 1840 accepted as Thoracophorus Erichson, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracophorus Gemminger & Harold, 1868 accepted as Thoracophorus Motschulsky, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thoracophorus Gervais & Ameghino, 1880 † accepted as Neothoracophorus Ameghino, 1889 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Glyptodontidae (Family)
     Thoracophorus Hope, 1841 accepted as Cardiothorax Motschoulsky, 1860 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thoracosphaera
 Thoracosphaera Krichagin, 1873 accepted as Metis Philippi, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Metidae (Family)
     Thoracosphaera Kamptner, 1927 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Thoracosphaerales (Order) > Thoracosphaeraceae (Family)

Thoralaspis
     Thoralaspis Hupé in Piveteau, 1953, nom. nud. † accepted as Thoralaspis Hupé, 1953 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)
     Thoralaspis Hupé, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ellipsocephalidae (Family)

Thoralicystis
     Thoralicystis Chauvel, 1978 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Cornuta (Order) > Cornuta (awaiting allocation) (Family)
     Thoralicystis Chauvel, 1971 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiuroidea (awaiting allocation) (Order) > Ophiuroidea (awaiting allocation) (Family)

Thore
     Thore Koch, 1850 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Thore Selys, 1853 accepted as Polythore Calvert, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Polythoridae (Family)

Thorea
     Thorea Bory de Saint-Vincent, 1808 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Thoreales (Order) > Thoreaceae (Family)
 Thorea J. Briquet, 1902 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thorea Rouy, 1913 accepted as Arrhenatherum Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thorectes
     Thorectes Mulsant, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
 Thorectes Agassiz, 1846 accepted as Neusticurus Duméril & Bibron, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)

Thorectus
 Thorectus Agassiz, 1846 accepted as Thorectes Mulsant, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
 Thorectus Agassiz, 1846 [2] accepted as Thorictus Germar, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Thorelia
 Thorelia H.F. Hance, 1877 accepted as Thorelia H.F. Hance, 1877 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Thorelia Gagnepain, 1920 accepted as Vernonia Schreber, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thorella
     Thorella Bruce, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)
 Thorella J. Briquet, 1914 accepted as Caropsis (G. Rouy & E.-G. Camus) S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Thorella B. Gaillon, 1883 accepted as Thorea Bory de Saint-Vincent, 1808 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Thoreales (Order) > Thoreaceae (Family)

Thorellia
 Thorellia Keyserling, 1882 accepted as Thorelliola Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Thorellia Boeck, 1865 accepted as Euryte Philippi, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Cyclopidae (Family)

Thoria
     Thoria Stål, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Thoria Zacharda, 1980 accepted as Sigthoria Ceccolini & Cianferoni, 2021 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Rhagidiidae (Family)

Thorictes
 Thorictes Krizhanovskiy, 1965 accepted as Thorictus Germar, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Thorictes accepted as Neusticurus Duméril & Bibron, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gymnophthalmidae (Family)

Thorina
     Thorina Stephensen, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Caprellidae (Family)
 Thorina Bruce, 1997 accepted as Thinora Bruce, 1998 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)

Thornburghiella
 Thornburghiella Vaillant, 1973 accepted as Thornburghiella Vaillant, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
     Thornburghiella Vaillant, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)

Thornella
 Thornella Novák, 2019 accepted as Upinella Mulsant, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Thornella Dubois, Ohler & Pyron, 2021 accepted as Oedipina Keferstein, 1868 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Plethodontidae (Family)

Thouarsia
 Thouarsia É.P. Ventenat ex A.P. de Candolle, 1836 accepted as Psiadia N.J. Jacquin ex Willdenow, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thouarsia O. Post & C.E.O. Kuntze, 1903 accepted as Thuarea Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thouinia
     Thouinia Poiteau, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Thouinia J.E. Smith, 1789 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
 Thouinia Thunberg ex Linnaeus f., 1782 accepted as Chionanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Oleaceae (Family)

Thous
     Thous Smith, 1839 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Thous Gray, 1869 accepted as Cerdocyon Smith, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Canidae (Family)

Thozetia
     Thozetia F. von Mueller ex Bentham, 1868 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Thozetia M.J. Berkeley & F. von Mueller in M.J. Berkeley, 1881 accepted as Thozetella O. Kuntze, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Chaetosphaeriales (Order) > Chaetosphaeriaceae (Family)

Thracia
     Thracia Leach in Sowerby, 1823 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)
     Thracia Blainville, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)
 Thracia Westwood, 1840 accepted as Zoraida Kirkaldy, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Derbidae (Family)

Thrasychiroides
 Thrasychiroides Schenkel, 1963 accepted as Schenkeliobunum Starega, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
     Thrasychiroides Soares & Soares, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Neopilionidae (Family)

Thraustocolus
     Thraustocolus Kraatz, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Thraustocolus Wollaston, 1864 accepted as Thraustocolus Kraatz, 1865 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Threnetes
     Threnetes Gould, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Threnetes Roberts, 1922 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)

Threnetica
     Threnetica Thomson, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Threnetica Gemminger & Harold, 1873 accepted as Trenetica Thomson, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Threnodes
     Threnodes Duponchel, 1845 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Threnodes Hewitson, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Threticus
     Threticus Eaton, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
 Threticus Portevin, 1935 accepted as Orchestes Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thrichidryas
     Thrichidryas Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thrichidryas Bierig, 1939 accepted as Thrichidryas Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thrichiota
 Thrichiota Mulsant & Rey, 1874 accepted as Atheta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Thrichiota Mulsant & Rey, 1873 accepted as Atheta Thomson, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thricogena
 Thricogena Neave, 1940 accepted as Tricogena Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhinophoridae (Family)
     Thricogena Rondani, 1859 accepted as Thrychogena Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thrinacodus
     Thrinacodus St. John & Worthen, 1875 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Thrinacodus Günther, 1879 accepted as Olallamys Emmons, 1988 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Echimyidae (Family)

Thrinax
     Thrinax O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Thrinax Konow, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Thrinax Pfeil, 1983 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Hexanchiformes (Order) > Chlamydoselachidae (Family)

Thriptera
     Thriptera Gistl, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Thriptera Solier, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Thrissa
     Thrissa Cuvier, 1816 accepted as Thrissa Cuvier, 1816 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Engraulidae (Family)
 Thrissa Rafinesque, 1815 accepted as Clupanodon Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Clupeidae (Family)

Thrissopteroides
     Thrissopteroides Woodward, 1898 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thrissopteroides Marck, 1873 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Thrixa
     Thrixa Dulac, 1867 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thrixa Pandellé, 1894 accepted as Trixa Meigen, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thrombidium
 Thrombidium Gerstaecker in Decken, 1873 accepted as Trombidium Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombidiidae (Family)
 Thrombidium Oudemans, 1909 accepted as Trombidium Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombidiidae (Family)

Thrombus
     Thrombus Oudemans, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thrombus Sollas, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Thrombidae (Family)

Thryallis
     Thryallis C.F.P. Martius, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Thryallis Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Thryallis Linnaeus, 1762 accepted as Galphimia Cavanilles, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
 Thryallis Linnavuori, 1973 accepted as Raunothryallis Faúndez, 2016 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coreidae (Family)

Thryasona
     Thryasona B. J. Smith & Kershaw, 1985 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Thryasona Iredale, 1933 accepted as Thryasona B. J. Smith & Kershaw, 1985 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Thryptocerus
     Thryptocerus Chaudoir, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Thryptocerus Kuwert, 1896 accepted as Passalus Fabricius, 1792 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passalidae (Family)

Thulinia
     Thulinia Gibson & Bray, 1979 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Diplostomida (Order) > Lecithasteridae (Family)
     Thulinia P.J. Cribb in P.J. Cribb & J. Stewart, 1985 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Thulinia Bertolani, 1981 accepted as Thulinius R. Bertolani, 2003 · Animalia (Kingdom) > Tardigrada (Phylum) > Eutardigrada (Class) > Parachela (Order) > Doryphoribiidae (Family)

Thunbergia
     Thunbergia Horváth, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
     Thunbergia Retzius, 1780 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Thunbergia Montin, 1773 accepted as Gardenia J. Ellis, 1761 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Thuraria
     Thuraria Molina, 1782 (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae incertae sedis (Family)
 Thuraria Anonymous, 1813 accepted as Thuraria Anonymous, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Thurberia
 Thurberia A. Gray, 1854 accepted as Gossypium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Thurberia Bentham, 1881 accepted as Limnodea L.H. Dewey in J.M. Coulter, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thurmannia
     Thurmannia Heer in Heer & Escher, 1852 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera incertae sedis (Family)
 Thurmannia Hyatt in Eastman-Zittel, 1900 † accepted as Thurmanniceras Cossmann, 1901 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Neocomitidae (Family)

Thursophyton
     Thursophyton A.G. Nathorst, 1914-1915 † accepted as Thursophyton A.G. Nathorst, 1914-1915 † (nomen nudum)· Plantae (Kingdom) > Tracheophyta (Phylum) > (Class) > (Order) > (Family)
 Thursophyton A.G. Nathorst ex E.A.N. Arber, 1921 † accepted as Thursophyton A.G. Nathorst, 1914-1915 † · Plantae (Kingdom) > Tracheophyta (Phylum) > (Class) > (Order) > (Family)

Thurstonia
     Thurstonia de Puytorac, 1968 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Hysterocinetidae (Family)
     Thurstonia Whalen & Carter, 1998 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Thwaitesia
     Thwaitesia Cambridge, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
     Thwaitesia Montagne, 1845 (uncertain)· Plantae (Kingdom) > Charophyta (Phylum) > Zygnematophyceae (Class) > Zygnematales (Order) > Zygnemataceae (Family)

Thya
     Thya Adanson, 1763 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Cupressaceae (Family)
 Thya Simon, 1876 accepted as Thyene Simon, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
     Thya Curtis, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Beraeidae (Family)

Thyana
     Thyana Dognin, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Thyana W. Hamilton, 1825 accepted as Thouinia Poiteau, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Thyas
     Thyas Hübner, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thyas Koch in Panzer, 1837 accepted as Acerbitas Özdikmen, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Hydryphantidae (Family)
 Thyas Gray, 1857 accepted as Arca Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)

Thyatira
 Thyatira Jeffreys, 1839 accepted as Thyasira Lamarck, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Thyasiridae (Family)
     Thyatira Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Drepanidae (Family)

Thyca
     Thyca H. Adams & A. Adams, 1854 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)
 Thyca Wallengren, 1858 accepted as Delias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Thyelia
 Thyelia Walker, 1865 accepted as Thyelia Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thyelia Koch, 1845 accepted as Thyelia Koch, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thyelia Berendt, 1845 accepted as Thyelia Berendt, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Thyelia Menge in Berendt, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Thyella
     Thyella Wallengren, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thyella Rafinesque, 1838 accepted as Jacquemontia J.D. Choisy, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
 Thyella H. Adams, 1866 † accepted as Thyellisca H. E. Vokes, 1956 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Semelidae (Family)
     Thyella Robineau-Desvoidy, 1863 accepted as Nemorilla Rondani, 1856 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thyellina
     Thyellina Münster in Agassiz, 1838 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Thyellina Mesnil, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Thyestes
     Thyestes Eichwald, 1859 † · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Cephalaspidiformes (Order) > Cephalaspididae (Family)
 Thyestes Thomson, 1864 accepted as Thyestilla Aurivillius, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thylacis
 Thylacis Gagnepain, 1932 accepted as Thrixspermum Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Thylacis Illiger, 1811 accepted as Perameles Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Peramelidae (Family)
 Thylacis Haltenorth, 1958 accepted as Isoodon Geoffroy in Desmarest, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Peramelidae (Family)

Thylacites
     Thylacites Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Thylacites Schoenherr, 1826 accepted as Cycloderes Schönherr in Sahlberg, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thylacium
     Thylacium Ehrenberg, 1841 † accepted as Thylacium Ehrenberg, 1841 † (nomen nudum)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Thylacium Carus, 1850 accepted as Stolonica Lacaze-Duthiers & Délage, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)
 Thylacium Alder & Hancock, 1907 accepted as Stolonica Lacaze-Duthiers & Délage, 1892 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Stolidobranchia (Order) > Styelidae (Family)

Thylacodes
     Thylacodes Trouessart, 1905 accepted as Thylacodes Trouessart, 1905 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Thylacodes Agassiz, 1846 accepted as Thylacodes Agassiz, 1846 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
     Thylacodes Guettard, 1770 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Thylacodus
 Thylacodus Marschall, 1873 accepted as Thylacodus Marschall, 1873 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)
 Thylacodus Mörch, 1860 accepted as Petaloconchus Lea, 1843 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Vermetidae (Family)

Thylacomys
 Thylacomys Blyth in Cuvier, 1840 accepted as Macrotis Reid, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Thylacomyidae (Family)
     Thylacomys Owen, 1838 accepted as Macrotis Reid, 1837 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Thylacomyidae (Family)
 Thylacomys Waite, 1898 accepted as Notomys Lesson, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Thylacophora
     Thylacophora Ragonot, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thylacophora Ridley, 1916 accepted as Riedelia D. Oliver, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)

Thylacosternus
     Thylacosternus Bonvouloir, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)
 Thylacosternus Fairmaire, 1881 accepted as Bibliothecarius Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Thylacotherium
     Thylacotherium Valenciennes, 1838 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Amphitheriida (Order) > Amphitheriidae (Family)
 Thylacotherium Lund, 1839 † accepted as Didelphis Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Didelphimorphia (Order) > Didelphidae (Family)
     Thylacotherium Lund, 1839, nom. nud. † accepted as Didelphis Linnaeus, 1758 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Didelphimorphia (Order) > Didelphidae (Family)

Thylax
     Thylax Rafinesque, 1830 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Thylax Oken, 1816 accepted as Perameles Geoffroy, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Peramelemorphia (Order) > Peramelidae (Family)
 Thylax B. Renault, 1896 † accepted as · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Thylax Hagen, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Lepidopsocidae (Family)

Thymallus
     Thymallus Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)
 Thymallus Cuvier, 1829 accepted as Thymallus Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)

Thymalops
     Thymalops Fennah, 1965 accepted as Queenslandicesa Koçak & Kemal, 2010 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Delphacidae (Family)
 Thymalops Iablokoff-Khnzorian, 1962 accepted as Thymalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Thymalidae (Family)

Thymalus
 Thymalus accepted as Thymallus Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)
     Thymalus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Thymalidae (Family)

Thymbra
     Thymbra Melichar, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
     Thymbra Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Thymbra P. Miller, 1754 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Thymelaea
     Thymelaea P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)
 Thymelaea Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Thymelaeaceae (Family)

Thymele
 Thymele Agassiz, 1846 accepted as Thymele Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thymele Fabricius, 1807 accepted as Trimeria Saussure, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Thymoites
 Thymoites Günther, 1939 accepted as Moluccasia Rehn, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
     Thymoites Keyserling, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)

Thymopsis
     Thymopsis Holthuis, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Nephropidae (Family)
     Thymopsis Bentham in Bentham & J.D. Hooker, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Thymopsis Jaubert & Spach, 1842 accepted as Thymopsis Jaubert & Spach, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)

Thymus
     Thymus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Thymus Girault, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Thynnichthys
     Thynnichthys Bleeker, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Thynnichthys Giglioli, 1880 accepted as Euthynnus Lütken in Jordan & Gilbert, 1883 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)

Thynnus
     Thynnus Fabricius, 1775 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tiphiidae (Family)
     Thynnus Browne, 1789 accepted as Thynnus Browne, 1789 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)
 Thynnus Gronow in Gray, 1854 accepted as Scomberoides Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Thynnus Cuvier, 1816 accepted as Thunnus South, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Scombridae (Family)

Thyone
     Thyone Oken, 1815 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Phyllophoridae (Family)
 Thyone Jaeger, 1833 accepted as Thyone Oken, 1815 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Phyllophoridae (Family)
 Thyone Philippi, 1840 accepted as Porcellidium Claus, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Porcellidiidae (Family)
 Thyone Meyrick, 1883 accepted as Asaphodes Meyrick, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Thyone Walker, 1854 accepted as Euthyone Watson in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Thyra
     Thyra Lefèvre, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Thyra Dejean, 1836 accepted as Thyra Lefèvre, 1875 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thyreodonta
     Thyreodonta Bezzi, 1903 accepted as Thyreodontha Rondani, 1863 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)
     Thyreodonta Marschall, 1873 accepted as Thyreodontha Rondani, 1863 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Thyreomorpha
     Thyreomorpha Boheman, 1850 accepted as Thyreomorpha Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Thyreomorpha Dejean, 1836 accepted as Notosacantha Chevrolat in Dejean, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thyreosoma
 Thyreosoma Chevrolat, 1864 accepted as Discoloma Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Discolomatidae (Family)
     Thyreosoma Dejean, 1833 accepted as Discoloma Erichson, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Discolomatidae (Family)

Thyreus
     Thyreus Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Thyreus Swainson, 1821 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Thyreus Lepeletier & Brullé, 1835 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphegidae (Family)
 Thyreus Philippi, 1844 accepted as Pedicularia Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ovulidae (Family)

Thyridia
     Thyridia Hübner, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Thyridia W.R. Barker & P.M. Beardsley in W.R. Barker, G.L. Nesom, P.M. Beardsley & N.S. Fraga, 2012 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Phrymaceae (Family)

Thyridium
     Thyridium Nitschke, 1867 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetidae incertae sedis (Order) > Thyridiaceae (Family)
     Thyridium Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Thyridium Mitten, 1868 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Calymperaceae (Family)
 Thyridium Schrammen, 1936 † accepted as Thyroidium de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Craticulariidae (Family)
     Thyridium Dejean, 1833 accepted as Thyridium Burmeister, 1844 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Thyridium Fuckel, 1870 accepted as Thyridium Nitschke, 1867 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetidae incertae sedis (Order) > Thyridiaceae (Family)

Thyrina
     Thyrina Poujade, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thyrina Jordan & Culver in Jordan, 1895 accepted as Atherinella Steindachner, 1875 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Atherinopsidae (Family)

Thyris
     Thyris Laspeyres, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Thyrididae (Family)
 Thyris Goode, 1880 accepted as Monolene Goode, 1880 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Bothidae (Family)

Thyrospora
     Thyrospora Kirschstein, 1938 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideales (Order) > Dothideales incertae sedis (Family)
 Thyrospora L.R. Tehon & E.Y. Daniels, 1925 accepted as Stemphylium Wallroth, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Pleosporaceae (Family)

Thyrostromella
     Thyrostromella Höhnel in Weese, 1929 accepted as Thyrostromella Höhnel in Weese, 1929 (nomen nudum)· Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Dematiaceae (Family)
     Thyrostromella von Höhnel, 1919 accepted as Thyrostromella von Höhnel, 1919 (nomen nudum)· Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Thyrostromella H. Sydow in H. Sydow & F. Petrak, 1924 accepted as Thyrostroma F. von Höhnel, 1911 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Botryosphaeriales (Order) > Botryosphaeriaceae (Family)

Thyrsacanthus
     Thyrsacanthus S. Moricand, 1847 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Thyrsacanthus C.G.D. Nees in C.F.P. Martius, 1847 accepted as Odontonema C.G.D. Nees, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Thyrsanthus
     Thyrsanthus Schrank, 1814 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Thyrsanthus Bentham, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Thyrsanthus S. Elliott, 1818 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Thyrsia
     Thyrsia Dalman, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Thyrsia Stapf in Prain, 1917 accepted as Phacelurus Grisebach, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Thyrsidium
     Thyrsidium Cope, 1874 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Thyrsidium Montagne in Durieu, 1846-1849 accepted as Cheirospora Mougeot & E.M. Fries, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Thyrsites
     Thyrsites Lesson, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gempylidae (Family)
 Thyrsites Cuvier in Cuvier & Valenciennes, 1832 accepted as Thyrsites Lesson, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gempylidae (Family)

Thyrsocera
     Thyrsocera Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattidae (Family)
 Thyrsocera Saussure, 1864 accepted as Pseudomops Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Ectobiidae (Family)

Thysanella
 Thysanella R.A. Salisbury, 1866 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Thysanella A. Gray, 1845 accepted as Polygonella A. Michaux, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Thysania
     Thysania Dalman, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Thysania Simon, 1910 accepted as Thysanina Simon, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Trachelidae (Family)

Thysanochilus
 Thysanochilus Philippi, 1857 accepted as Geotria Gray, 1851 · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Petromyzontiformes (Order) > Geotriidae (Family)
 Thysanochilus H. Falconer, 1839 accepted as Eulophia R. Brown, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Thysanochilus Butler, 1878 accepted as Cabera Treitschke, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Thysanodes
     Thysanodes Rambur, 1870 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Thysanodes Newman, 1842 accepted as Sthenias Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Thysanophora
     Thysanophora Strebel & Pfeffer, 1880 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Thysanophoridae (Family)
     Thysanophora W.B. Kendrick, 1961 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Aspergillaceae (Family)

Thysanoplana
 Thysanoplana Plehn, 1896 accepted as Acanthozoon Collingwood, 1876 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Pseudocerotidae (Family)
 Thysanoplana Graff, 1912-17 † accepted as Papilloplana Kenk, 1974 † · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Dendrocoelidae (Family)

Thysanopoda
     Thysanopoda Latreille, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Euphausiacea (Order) > Euphausiidae (Family)
     Thysanopoda Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Euphausiacea (Order) > Euphausiidae (Family)

Thysanota
     Thysanota Stichel, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)
     Thysanota Albers, 1860 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Thysanotus
     Thysanotus Chaudoir, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Thysanotus R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
 Thysanotus Koliha, 1926 † accepted as Thysanotos Mickwitz, 1896 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)

Thysanus
     Thysanus Duncan, 1863 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Trachyphylliidae (Family)
     Thysanus Walker, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Signiphoridae (Family)
 Thysanus Loureiro, 1790 accepted as Cnestis A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Connaraceae (Family)

Thysbe
 Thysbe Motschulsky, 1851 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Thysbe Dejean, 1836 accepted as Thysbe Motschulsky, 1851 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Thysbe Thomson, 1858 accepted as Colasposoma Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Thysdrus
     Thysdrus Stål, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Thysdrus Fairmaire, 1899 accepted as Thysdarius Fairmaire, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Thysia
 Thysia Loiselle & Welcomme, 1972 accepted as Thysochromis Daget, 1988 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)
     Thysia Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tianella
     Tianella Attems, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Entomobielziidae (Family)
     Tianella Bugrova, 2003 † (uncertain)· Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Oligotrichida (Order) > Oligotrichida (awaiting allocation) (Family)

Tianshanella
     Tianshanella Brodsky, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)
     Tianshanella Da † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Tianzhushania
     Tianzhushania Qian, Chen & Chen, 1979 † accepted as Halkieria Poulsen, 1967 † (junior subjective synonym)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > Coeloscleritophora (Class) > Sachitida (Order) > Halkieriidae (Family)
     Tianzhushania L.M. Yin & Z.P. Li, 1978 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Tiara
     Tiara González-Sponga, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Zalmoxidae (Family)
 Tiara Lesson, 1843 accepted as Neoturris Hartlaub, 1914 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Pandeidae (Family)
 Tiara Gray, 1847 accepted as Thiara Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
 Tiara Swainson, 1831 accepted as Vexillum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Costellariidae (Family)

Tiaranna
     Tiaranna Haeckel, 1879 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tiarannidae (Family)
 Tiaranna Hartlaub, 1914 accepted as Modeeria Forbes, 1848 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tiarannidae (Family)

Tiare
     Tiare Herring, 1967 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Anthocoridae (Family)
 Tiare accepted as Tiaris Duméril & Bibron, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)

Tiarella
     Tiarella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
 Tiarella Pomel, 1883 † accepted as Trochotiara Lambert in Killian & Petitclere, 1901 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Phymosomatoida (Order) > Phymosomatoida (awaiting allocation) (Family)
 Tiarella Trinci, 1906 accepted as Oceania Kölliker, 1853 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Oceaniidae (Family)
 Tiarella Cheissin, 1931 accepted as Cheissinia Chatton & Lwoff, 1949 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
 Tiarella Cossmann, 1889 † accepted as Cyrbasia Harris & Burrows, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Cerithiopsidae (Family)
 Tiarella Schulze, 1876 accepted as Tricyclusa Stechow, 1919 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tricyclusidae (Family)
 Tiarella Swainson, 1840 accepted as Mitra Lamarck, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Mitridae (Family)

Tiaris
     Tiaris Swainson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Tiaris Quenstedt, 1872 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Tiaris Duméril & Bibron, 1837 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)

Tiaropsis
     Tiaropsis Agassiz, 1849 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Tiaropsidae (Family)
 Tiaropsis Brot, 1871 accepted as Thiara Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)

Tiberia
     Tiberia Monterosato, 1875 accepted as Tiberia Jeffreys, 1884 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
     Tiberia Jeffreys, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Tibetia
     Tibetia (S.I. Ali) H.P. Tsui, 1979 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Tibetia Zhang, Zhu & Song, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)

Tibetocoris
     Tibetocoris Zheng & Liu, 1987 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tibetocoris Hutchinson, 1934 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tibicina
     Tibicina Kolenati, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)
 Tibicina Amyot, 1847 accepted as Tibicina Kolenati, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Tibiella
     Tibiella Meyer, 1884 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Thecosomata (awaiting allocation) (Family)
     Tibiella Carter, 1881 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Tibiella C.E. Bessey, 1900 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Tibiominettia
 Tibiominettia Hendel, 1932 accepted as Allominettia Hendel, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lauxaniidae (Family)
 Tibiominettia Hendel, 1936 accepted as Allominettia Hendel, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lauxaniidae (Family)

Tibiovalgus
     Tibiovalgus Krikken, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tibiovalgus Kolbe, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tichonia
     Tichonia Hübner, 1825 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tichonia Semenov, 1904 accepted as Tichonilla Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tichorhinus
     Tichorhinus Brandt, 1849 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Tichorhinus Fieber, 1858 accepted as Orthotylus Fieber, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Tiedemannia
     Tiedemannia Ehrenberg, 1862 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tiedemannia van Beneden, 1839 accepted as Gleba Forsskål in Niebuhr, 1776 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Thecosomata (Order) > Cymbuliidae (Family)
 Tiedemannia A.P. de Candolle, 1829 accepted as Oxypolis Rafinesque, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Tiedemannia Leuckart, 1830 accepted as Tiedemannia Leuckart, 1830 (nomen dubium)· Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Synaptidae (Family)

Tieghemella
     Tieghemella Pierre, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Tieghemella Berlese & G.B. De Toni in P.A. Saccardo, 1888 accepted as Absidia Van Tieghem, 1878 · Fungi (Kingdom) > Zygomycota (Phylum) > Mucoromycetes (Class) > Mucorales (Order) > Mucoraceae (Family)

Tiepolemoides
     Tiepolemoides Breuning, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tiepolemoides Hunt & Breuning, 1959 accepted as Paratiepolemoides Breuning, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tigarea
     Tigarea Pursh, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Tigarea Aublet, 1775 accepted as Davilla Vandelli, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)

Tigava
     Tigava Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Tigava Stål, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tigrana
     Tigrana Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Tigrana Fairmaire, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tigria
 Tigria Trevisan, 1853 accepted as Erysiphe R. Hedwig ex A.P. de Candolle, 1805 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Erysiphales (Order) > Erysiphaceae (Family)
     Tigria Grishin, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Riodinidae (Family)

Tigridia
     Tigridia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
     Tigridia A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tigrina
     Tigrina Fei, Ye & Huang, 1990 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Anura (awaiting allocation) (Family)
 Tigrina Grevé, 1894 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)

Tigris
     Tigris Troschel, 1861 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tigris Oken, 1816 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)
 Tigris Frisch, 1775 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)
 Tigris Gray, 1843 accepted as Panthera Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Felidae (Family)

Tigronchoides
     Tigronchoides Ivanova, 1976 accepted as Tigronchoides Ivanova, 1976 (nomen nudum)· Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mononchida (Order) > Anatonchidae (Family)
     Tigronchoides Ivanova & Dzhuraeva, 1972 † · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mononchida (Order) > Anatonchidae (Family)

Tijuca
     Tijuca Lesson, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Tijuca Mello-Leitão, 1925 accepted as Tenedos Cambridge, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Zodariidae (Family)

Tildenia
     Tildenia Povolny, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
     Tildenia Miquel, 1843 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Piperales (Order) > Piperaceae (Family)
 Tildenia Kossinskaja, 1926 accepted as Scytonematopsis E.I. Kiseleva, 1930 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Scytonemataceae (Family)

Tilesia
     Tilesia Lamouroux, 1821 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
     Tilesia G.F.W. Meyer, 1818 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tilesia (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniaria incertae sedis (Family)
 Tilesia Swainson, 1838 accepted as Eleginus Fischer, 1813 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)
     Tilesia Robineau-Desvoidy, 1863 accepted as Tilesia Robineau-Desvoidy, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Tillyardembia
     Tillyardembia Zalessky, 1937 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Embiodea (Order) > Embiodea (awaiting allocation) (Family)
     Tillyardembia Aristov, 2018 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Cnemidolestodea (Order) > Tillyardembiidae (Family)

Tillyardia
     Tillyardia Carter, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tillyardia Bolton, 1922 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Tillyardiopsis
     Tillyardiopsis Tillyard, 1923 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tillyardiopsis Dunstan, 1924 † accepted as Mesolobites Carpenter, 1985 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Schizocoleidae (Family)

Tilodes
 Tilodes Cristofori & Jan, 1832 accepted as Tylodes Schönherr in Sahlberg, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tilodes Fischer von Waldheim, 1829 accepted as Pterostichus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tima
     Tima Eschscholtz, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Eirenidae (Family)
     Tima Walker, 1857 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Timaea
     Timaea Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
 Timaea Saalmüller, 1891 accepted as Compsotata Prout, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Timagora
 Timagora Dejean, 1821 accepted as Cleopus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Timagora Gistl, 1848 accepted as Nettarhinus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Timandra
     Timandra Duponchel in Godart, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
 Timandra Klotzsch, 1841 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Timandra Gistl, 1848 accepted as Basitoxus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Timanella
     Timanella A.G. Vologdin in A.G. Vologdin & O.S. Kocetkov, 1966 † (uncertain)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Dasycladales (Order) > Dasycladaceae (Family)
     Timanella Egorov, 1950 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Timanella Reytlinger, 1981 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Endothyridae (Family)
 Timanella M.A. Plotnikov, 1974 † accepted as Niledziella M.A. Plotnikov, 1979 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Peridiniaceae (Family)

Timanites
     Timanites Mojsisovics, 1882 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Anarcestida (Order) > Gephuroceratidae (Family)
     Timanites Davydov & Arefifard, 2007 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Schwagerinidae (Family)

Timarcha
     Timarcha Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Timarcha Dejean, 1821 accepted as Timarcha Latreille in Cuvier, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Timia
     Timia Wiedemann, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)
 Timia Boisduval, 1828 accepted as Axia Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cimeliidae (Family)

Timmia
     Timmia Hopper, 1961 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Chromadorida (Order) > Chromadoridae (Family)
     Timmia J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Timmiaceae (Family)
 Timmia J.F. Gmelin, 1791 accepted as Timmia J.F. Gmelin, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Timofeevia
     Timofeevia Chisholm, Wheeler & Beverley-Burton, 1995 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Monocotylidea (Order) > Monocotylidae (Family)
     Timofeevia Vanguestaine, 1978 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Timorella
     Timorella P.R. Bown, 1987 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Stephanolithiales (Order) > Parhabdolithaceae (Family)
 Timorella Gerth, 1909 † accepted as Timidella de Laubenfels in Moore, 1955 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Discodermiidae (Family)
 Timorella Bergh, 1905 accepted as Doto Oken, 1815 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Dotidae (Family)

Timorenia
 Timorenia Swainson, 1840 accepted as Timorenia Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Timorenia Spasskii, 1987 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Anoplocephalidae (Family)

Timoria
     Timoria Kaye, 1919 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Timoria Krumbeck, 1924 † accepted as Krumbeckiella Ichikawa, 1958 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pergamidiidae (Family)

Tina
     Tina Powell, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Tina J.A. Schultes in J.J. Roemer & J.A. Schultes, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Tinaea
 Tinaea Geoffroy, 1762 accepted as Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
 Tinaea Garzia, 1838 accepted as Lamarckia C. Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Tinantia
 Tinantia Martens & Galeotti, 1844 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
     Tinantia Scheidweiler, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Commelinaceae (Family)
 Tinantia Dumortier, 1829 accepted as Tinantia Dumortier, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tinca
     Tinca Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
     Tinca Geoffroy, 1767 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tinca E. Plamada & R. Givulescu, 1979 † (uncertain)· Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryopsida (awaiting allocation) (Order) > Bryopsida (awaiting allocation) (Family)

Tinea
     Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Tinea K.P.J. Sprengel, 1820 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Tinea (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Zygentoma (Order) > Lepismatidae (Family)
 Tinea Bivona, 1833 accepted as Neotinea H.G. Reichenbach, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tinea Griffith, 1897 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)
 Tinea Denis & Schiffermüller, 1775 accepted as Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Tinearia
 Tinearia Rafinesque, 1815 accepted as Tinea Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Tinearia Schellenberg, 1803 accepted as (nomen dubium)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)

Tineites
     Tineites Germar in Münster, 1842 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemeroptera (awaiting allocation) (Family)
 Tineites Kawall, 1876 † accepted as Tineitella Fletcher, 1940 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Tineomorpha
     Tineomorpha Enderlein, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)
     Tineomorpha Amsel, 1956 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tineopsis
     Tineopsis Zagulyaev, 1960 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tineopsis Dyar, 1914 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
     Tineopsis Felder, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Tingitana
     Tingitana Evans & Sigogneau-Russell, 1997 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Rhynchocephalia (Order) > Rhynchocephalia (awaiting allocation) (Family)
     Tingitana Pallary, 1918 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tingitanella
     Tingitanella Bourrelly & Gayral, 1950 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Phacotaceae (Family)
     Tingitanella Streng, 1999 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Acrotretida (Order) > Acrotretidae (Family)

Tinnunculus
     Tinnunculus Linnaeus, 1766 accepted as Tinnunculus Linnaeus, 1766 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tinnunculus Vieillot, 1807 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tinodes
     Tinodes Curtis, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Psychomyiidae (Family)
     Tinodes Stephens, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)

Tinostoma
     Tinostoma Rothschild & Jordan, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
 Tinostoma Jousseaume, 1881 † accepted as Teinostoma H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tornidae (Family)
 Tinostoma P. Fischer, 1885 accepted as Teinostoma H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tornidae (Family)

Tinus
     Tinus Cambridge, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)
     Tinus P. Miller, 1754 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)
 Tinus O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Primulaceae (Family)
 Tinus Linnaeus, 1759 accepted as Clethra Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Clethraceae (Family)

Tipasa
     Tipasa Walker, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tipasa Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Tiphis
 Tiphis d'Orbigny, 1850 † accepted as Typhis Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Tiphis Kirchner, 1864 accepted as Tiphys Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pionidae (Family)

Tiphys
     Tiphys Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pionidae (Family)
 Tiphys Agassiz, 1846 † accepted as Typhis Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Tiphys Gistl, 1848 accepted as Diaphorus Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tipnus
 Tipnus Thomson, 1863 accepted as Epauloecus Mulsant & Rey, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Tipnus Jacquelin du Val, 1860 accepted as Sphaericus Wollaston, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tipuana
     Tipuana Melichar, 1926 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tipuana (Bentham) Bentham, 1860 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tipularia
     Tipularia Weyenbergh, 1869 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tipularia Nuttall, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tipularia F.F. Chevallier, 1822 accepted as Halterophora Endlicher, 1836 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > (Order) > (Family)

Tirasia
     Tirasia Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lecithoceridae (Family)
     Tirasia Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)

Tiresias
 Tiresias Bory de Saint-Vincent, 1833 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Xanthophyceae (awaiting allocation) (Order) > Xanthophyceae (awaiting allocation) (Family)
     Tiresias Stephens, 1833 accepted as Tiresias Stephens, 1833 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
     Tiresias M'Coy in Griffith, 1846 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Tiresias Stephens, 1835 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Tiresiomorpha
 Tiresiomorpha Pic, 1954 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Tiresiomorpha Háva, 2004 accepted as Ctesias Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Tiretia
 Tiretia Hustache, 1949 accepted as Martrilia Casey, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tiretia Hustache, 1938 accepted as Martrilia Casey, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tirodesmus
     Tirodesmus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Platyrhacidae (Family)
     Tirodesmus Attems, 1932 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)

Tirolites
     Tirolites Mojsisovics, 1879 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)
     Tirolites Mojsisovics, 1879, nom. nud. † accepted as Tirolites Mojsisovics, 1879 † (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Ceratitida (awaiting allocation) (Family)

Tisia
     Tisia Dlabola, 1981 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tisia Hoberlandt, 1993 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Tisiphone
     Tisiphone Fitzinger, 1826 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Tisiphone Reitter, 1873 accepted as Tisiphone Reitter, 1873 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Smicripidae (Family)
     Tisiphone Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Tisiphone Reitter, 1876 accepted as Smicrips Leconte, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Smicripidae (Family)

Tisiphonia
     Tisiphonia Schmidt, 1870 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Tisiphonia Thomson, 1869 accepted as Thenea Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Theneidae (Family)

Tisma
     Tisma Razowski, 2014 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Tisma Giglio-Tos, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Tissa
     Tissa Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tissa Adanson, 1763 accepted as Tissa Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Tisserantiella
     Tisserantiella Potier de la Varde, 1941 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Orthotrichales (Order) > Rhachitheciaceae (Family)
 Tisserantiella Mimeur, 1949 accepted as Thyridachne Hubbard, 1949 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Titaea
     Titaea Hübner, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Titaea P.A. Saccardo, 1876 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Tubeufiales (Order) > Tubeufiaceae (Family)

Titana
     Titana Budde-Lund, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Titanidae (Family)
     Titana Walker, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Titania
 Titania Meigen, 1800 accepted as Titania Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Titania Endlicher, 1833 accepted as Oberonia Lindley, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Titania Agassiz, 1846 accepted as Titanio Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Titania Berlese, 1900 accepted as Fremineavia Nieuwland, 1916 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Melanconidaceae (Family)

Titanichthys
     Titanichthys Newberry, 1885 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)
     Titanichthys Dames, 1887 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Titanophyllum
     Titanophyllum B. Renault in B. Renault & R. Zeiller, 1890 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cordaitales (Order) > Cordaitales (awaiting allocation) (Family)
     Titanophyllum Akkari, Stoev & Enghoff, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)

Titanopsis
     Titanopsis Schwantes, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Titanopsis de Folin, 1881 accepted as Titanopsis de Folin, 1881 (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Psammosphaeridae (Family)
 Titanopsis de Folin, 1887 accepted as Storthosphaera Schultze, 1875 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Stegnamminidae (Family)

Titanopteryx
     Titanopteryx Enderlein, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Simuliidae (Family)
     Titanopteryx Arambourg, 1959 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Pterosauria (Order) > Azhdarchidae (Family)

Titanothyris
     Titanothyris Ching & Hu, 1982 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Athyridida (Order) > Athyrididae (Family)
     Titanothyris Jin, 1984 † (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Titanus
     Titanus Giebel, 1875 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Titanus Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Titanus Perrier, 1872 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)

Tithonia
     Tithonia Pomel, 1883 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Euechinoidea incertae sedis (Order) > Tithoniidae (Family)
     Tithonia Desfontaines ex A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tithonia O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Phytolaccaceae (Family)

Tithonus
     Tithonus Thomson, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tithonus Dejean, 1821 accepted as Otiorhynchus Germar, 1822 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tithonus Germar, 1824 accepted as Otiorhynchus Germar, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tithymalus
 Tithymalus P. Miller, 1754 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tithymalus Séguier, 1754 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tithymalus Hill, 1756 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tithymalus J. Gaertner, 1790 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Titia
     Titia Hermann, 1804 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Titia Meigen, 1800 accepted as Titia Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Titia Stål, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tittmannia
     Tittmannia A.T. Brongniart, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)
 Tittmannia H.G.L. Reichenbach, 1824 accepted as Tittmannia H.G.L. Reichenbach, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Tituacia
     Tituacia Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)
 Tituacia Pascoe, 1870 accepted as Tituacus Marshall, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Titurius
     Titurius Pascoe, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Titurius Simon, 1884 accepted as Thalassius Simon, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)

Tlepolemoides
     Tlepolemoides Breuning, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tlepolemoides Hunt & Breuning, 1959 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tlos
     Tlos Adams & White, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)
     Tlos White, 1847 accepted as Tlos Adams & White, 1849 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)
     Tlos Adams in Belcher, 1848 accepted as (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Leucosiidae (Family)

Tmesisternus
     Tmesisternus Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tmesisternus Audinet-Serville, 1834 accepted as Coptomma Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tmetocerus
     Tmetocerus Poujade, 1895 accepted as Tmetocerus Poujade, 1895 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
 Tmetocerus Hartert, 1891 accepted as Tmetocerus Hartert, 1891 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Toba
     Toba Schmidt, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Toba Holmberg, 1887 accepted as Toba Holmberg, 1887 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Tobinia
 Tobinia Whitley, 1933 accepted as Tobinia Whitley, 1933 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Balistidae (Family)
     Tobinia Desvaux ex W. Hamilton, 1825 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Tobolia
     Tobolia Sazonov, 1960 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Tobolia Dain in Bykova et al., 1958 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Polymorphinidae (Family)

Tocantinia
     Tocantinia Carrera, 1955 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Tocantinia P. Ravenna, 2000 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Todaroa
     Todaroa Parlatore in P.B. Webb & S. Berthelot, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Todaroa A. Richard & Galeotti, 1845 accepted as Campylocentrum Bentham, 1881 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Todarus
     Todarus Rafinesque, 1815 accepted as Todarus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Argonautidae (Family)
     Todarus Rafinesque, 1840 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Argonautidae (Family)
 Todarus Grassi & Calandruccio, 1896 accepted as Dysomma Alcock, 1889 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Synaphobranchidae (Family)

Toddella
 Toddella Bronnimann & Zaninetti, 1984 † accepted as Rhumblerella Brönniman, 1981 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Globotextulariidae (Family)
     Toddella Fordham, 1986 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Toddia
     Toddia França, 1911 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Toddia Travassos, 1954 accepted as Pseudonymus Diesing, 1857 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Pseudonymidae (Family)
 Toddia Kiriakoff, 1967 † accepted as Toddiana Kiriakoff, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Toddiana
     Toddiana Kiriakoff, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Toddiana Forster, 1988 accepted as Forstera Koçak & Kemal, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Cyatholipidae (Family)

Todea
     Todea McKamey, 1994 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Todea Willdenow ex Bernhardi, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Osmundales (Order) > Osmundaceae (Family)

Todirhamphus
 Todirhamphus Lesson, 1827 accepted as Todiramphus Lesson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Halcyonidae (Family)
 Todirhamphus Kaup, 1852 accepted as Todirostrum Lesson, 1830-1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Todirhamphus Voigt in Voigt-Cuvier, 1831 accepted as Todiramphus Lesson, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Halcyonidae (Family)

Toenia
     Toenia Jarocki, 1821 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Toenia Lamarck, 1816 accepted as Taenia Linnaeus, 1758 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Taeniidae (Family)

Togaria
     Togaria Matsumura, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Drepanidae (Family)
 Togaria W.G. Smith, 1908 accepted as Agrocybe Fayod, 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)

Toladenia
     Toladenia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Toladenia J.M.H. Shaw, 2004 accepted as Toladenia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolarenta
     Tolarenta Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
     Tolarenta Gray, 1840 accepted as Tolarenta Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Tolassia
 Tolassia J.M.H. Shaw, 2004 accepted as Tolassia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tolassia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolguezettia
     Tolguezettia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tolguezettia J.M.H. Shaw, 2004 accepted as Tolguezettia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tollia
     Tollia Amsel, 1949 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tollia Pavlov, 1913 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Polyptychitidae (Family)
     Tollia I.N. Sveshnikova & L. Yu. Budantsev, 1969 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Cupressaceae (Family)

Tolmerus
     Tolmerus Loew, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Tolmerus Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tolmerus Fairmaire, 1900 accepted as Tolmetes Champion, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)
 Tolmerus Bernhauer, 1911 accepted as Tolmerinus Bernhauer, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tolmerus Heine, 1890 accepted as Falco Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Falconidae (Family)

Tolmiea
     Tolmiea Torrey & A. Gray, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
 Tolmiea W.J. Hooker, 1834 accepted as Tolmiea W.J. Hooker, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Toloncettia
     Toloncettia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Toloncettia J.M.H. Shaw, 2004 accepted as Toloncettia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolpiacalles
 Tolpiacalles Stüben & Astrin, 2010 accepted as Silvacalles Stüben & Astrin, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tolpiacalles Stüben, Fabian & Astrin, 2009 accepted as Silvacalles Stüben & Astrin, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toluandra
     Toluandra J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Toluandra J.M.H. Shaw, 2004 accepted as Toluandra J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolucentrum
     Tolucentrum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tolucentrum J.M.H. Shaw, 2004 accepted as Tolucentrum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Toluglossum
     Toluglossum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Toluglossum J.M.H. Shaw, 2004 accepted as Toluglossum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolumnia
     Tolumnia Stål, 1867 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Tolumnia Rafinesque, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolumnopsis
     Tolumnopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tolumnopsis J.M.H. Shaw, 2004 accepted as Tolumnopsis J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolutonia
     Tolutonia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Tolutonia J.M.H. Shaw, 2004 accepted as Tolutonia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tolypammina
     Tolypammina Rhumbler, 1895 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Ammodiscidae (Family)
     Tolypammina Hofker, 1972 (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Tolype
     Tolype Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
     Tolype Bode, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera incertae sedis (Family)

Tomaculopsis
     Tomaculopsis A.B. Cribb, 1960 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Sporochnales (Order) > Sporochnaceae (Family)
     Tomaculopsis Breton, 2011 † · Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > (Family)

Tomaculum
     Tomaculum Whitford, 1943 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Radiococcaceae (Family)
     Tomaculum Groom, 1902 † (uncertain)· Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)

Tomarus
     Tomarus Erichson, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tomarus Leconte, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cryptophagidae (Family)

Tomasina
     Tomasina Hall & Clarke, 1891 † accepted as Tomasina Hall & Clarke, 1892 † (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)
     Tomasina Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)

Tomella
 Tomella Swainson, 1840 † accepted as Tomellana Wenz in Schindewolf, 1943 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Clavatulidae (Family)
     Tomella Robineau-Desvoidy, 1830 accepted as Tomella Robineau-Desvoidy, 1830 (taxon inquirendum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scathophagidae (Family)

Tomentella
     Tomentella Persoon ex Patouillard, 1887 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Thelephoraceae (Family)
     Tomentella Johan-Olsen in Brefeld, 1888 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Thelephorales (Order) > Thelephoraceae (Family)
 Tomentella P.A. Karsten, 1889 accepted as Trechispora P.A. Karsten, 1890 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Trechisporales (Order) > Hydnodontaceae (Family)

Tomex
 Tomex Thunberg, 1783 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)
 Tomex Linnaeus, 1753 accepted as Callicarpa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Tomex P. Forsskål, 1775 accepted as Dobera A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Salvadoraceae (Family)

Tomia
     Tomia Martynov, 1936 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Tomia I.N. Srebrodol'skaja in B.P. Markovskij, 1960 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)
     Tomia Paramonov, 1961 accepted as Ceratomerus Philippi, 1865 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Brachystomatidae (Family)

Tomiella
     Tomiella Spizharsky, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)
     Tomiella V.A. Chachlov, 1939 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Tomiopsis
     Tomiopsis Benediktova, 1956 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Ingelarellidae (Family)
 Tomiopsis Cope, 1893 † accepted as Tomiopsis Cope, 1893 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cingulata (Order) > Glyptodontidae (Family)

Tomlinella
 Tomlinella Clench & Turner, 1948 accepted as Truncatella Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)
     Tomlinella Viader, 1938 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Zebinidae (Family)

Tomlinsonia
     Tomlinsonia W.D. Tidwell & E.M.V. Nambudiri, 1989 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Tomlinsonia Turquier, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Apygophora (Order) > Trypetesidae (Family)

Tomocephalus
 Tomocephalus Agassiz, 1846 accepted as Tomicephalus Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Tomocephalus Harold, 1869 accepted as Tomicephalus Latreille, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Tomocera
 Tomocera Desmarest in Chenu, 1858 † accepted as Tomocera Desmarest in Chenu, 1858 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tomocera Howard, 1881 accepted as Moranila Cameron, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Tomochilus
 Tomochilus Laferté-Sénéctère, 1851 accepted as Chlaenius Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Tomochilus Fischer, 1884 † accepted as Teliochilus Cossmann, 1906 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)

Tomodon
     Tomodon Rafinesque, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Tomodon Duméril, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Tomodon Leidy, 1865 † accepted as Diplotomodon Leidy, 1869 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Dryptosauridae (Family)

Tomodus
     Tomodus Trautschold, 1879 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tomodus Davis, 1883 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Tomodus Morris & Roberts, 1862 † accepted as Tomodus Morris & Roberts, 1862 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Tomodus Ameghino, 1886 † accepted as Eutomodus Ameghino, 1889 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)

Tomognathus
     Tomognathus Agassiz in Dixon, 1850 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Tomognathus Mayr, 1861 accepted as Harpagoxenus Forel, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)

Tomogonus
     Tomogonus d'Orbigny, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Tomogonus Demange, 1971 accepted as Tomogonopus Sierwald & Mauriès, 2017 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Spirostreptida (Order) > Spirostreptidae (Family)

Tomopeas
     Tomopeas Miller, 1900 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Molossidae (Family)
     Tomopeas Pilsbry, 1906 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tomyris
     Tomyris Michailovskii, 1912 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Tomyris Eichwald, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Tomyris Druce, 1890 accepted as Rowdenia Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Tomyris Chapuis in Lacordaire, 1874 accepted as Eboo Reid, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Tonduzia
     Tonduzia Pittier, 1908 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Tonduzia F.L. Stevens, 1927 accepted as Dontuzia L.D. Gómez Pignataro, 1973 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tongshania
     Tongshania Qiu & Lin, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariidae (Family)
     Tongshania F. Stockmans & F.-F. Mathieu, 1957 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Tonia
     Tonia Gray, 1840, nom. nud. accepted as Stichaster Müller & Troschel, 1840 (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Stichasteridae (Family)
 Tonia Gray, 1840 accepted as Stichaster Müller & Troschel, 1840 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Stichasteridae (Family)

Tonica
 Tonica Odhner, 1917 accepted as Tonica Odhner, 1917 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chitonidae (Family)
     Tonica Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Depressariidae (Family)

Tonichia
     Tonichia Gray, 1840 accepted as Tonichia Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Chitonidae (Family)
 Tonichia Gray, 1857 accepted as Tomichia Benson, 1851 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiopsidae (Family)

Tonnoiria
     Tonnoiria Edwards, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Tonnoiria Parent, 1929 accepted as Neotonnoiria Robinson, 1970 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
 Tonnoiria Malloch, 1929 accepted as Craspedochaeta Czerny, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Clusiidae (Family)
 Tonnoiria Lallemand, 1954 accepted as Cercopicesa Koçak & Kemal, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cercopidae (Family)

Tonnoirina
 Tonnoirina Amorim & Tozoni, 1994 accepted as Sylvicola Harris, 1776 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anisopodidae (Family)
 Tonnoirina Edwards, 1929 accepted as Edwardsina Alexander, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Blephariceridae (Family)
     Tonnoirina Schmitz, 1939 accepted as Triphleba Rondani, 1856 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Phoridae (Family)

Tonsella
     Tonsella Amsden, 1988 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Oligorhynchiidae (Family)
 Tonsella Schreber, 1789 accepted as Salacia Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Tontelea
     Tontelea Miers, 1872 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
 Tontelea Aublet, 1775 accepted as Salacia Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Topalia
 Topalia Hlisnikovský, 1964 accepted as Chiliopelates Jeannel, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
     Topalia Balogh & Csiszár, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Nosybeidae (Family)

Topaza
     Topaza Walker, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Topaza Gray, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Tophoderes
     Tophoderes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Tophoderes Schönherr, 1839 accepted as Tophoderes Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Toplithus
     Toplithus Des Gozis, 1882 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Toplithus Bedel, 1884 accepted as Anthonomus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Topsentia
     Topsentia Berg, 1899 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Suberitida (Order) > Halichondriidae (Family)
     Topsentia Clarke, 1921 † accepted as Topsentopsis de Laubenfels in Moore, 1955 † (junior homonym)· Animalia (Kingdom) > Trace fossils (Phylum) > (Class) > (Order) > Entobiaidae (Family)

Torbenia
     Torbenia Libert, 2000 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
 Torbenia Baba, 2005 accepted as Torbenella Baba, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Munididae (Family)

Torda
     Torda Duméril, 1805 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Torda Walker, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Torellia
     Torellia Jeffreys, 1867 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)
     Torellia Heer, 1870 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Taxaceae (Family)

Toreuma
     Toreuma Haeckel, 1880 · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Rhizostomeae (Order) > Cassiopeidae (Family)
     Toreuma Carter, 1913 accepted as Eutoreuma Carter, 1914 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Toreus
     Toreus Purcell, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Ceromidae (Family)
     Toreus Melander, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Empididae (Family)

Torinia
 Torinia J.E. Gray, 1842 accepted as Heliacus d'Orbigny in Sagra, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)
     Torinia Gray, 1840 accepted as Heliacus d'Orbigny in Sagra, 1842 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)

Torma
     Torma China, 1927 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Capsidae (Family)
 Torma accepted as Tonna Brünnich, 1771 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tonnidae (Family)

Torminaria
     Torminaria P.M. Opiz, 1839 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Torminaria (A.P. de Candolle) M.J. Roemer, 1847 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)

Tornabenia
 Tornabenia Trevisan, 1853 accepted as Tornabea H. Østhagen in H. Østhagen & P. Sunding, 1980 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Physciaceae (Family)
 Tornabenia A. Massalongo, 1853 accepted as Anaptychia Körber, 1848 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Physciaceae (Family)

Tornatella
 Tornatella Lamarck, 1816 accepted as Acteon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Acteonidae (Family)
 Tornatella Mousson, 1869 accepted as Tornatellina Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)

Tornatellina
     Tornatellina Beck, 1837 accepted as Tornatellina Beck, 1837 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)
     Tornatellina L. Pfeiffer, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Achatinellidae (Family)

Torneutes
     Torneutes Reich, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Torneutes Schönherr, 1844 accepted as Microstrates Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tornista
 Tornista "Iredale, 1936" accepted as Torinista Iredale, 1936 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)
 Tornista "Gray, 1842" accepted as Torinia J.E. Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Architectonicidae (Family)

Tornquistia
     Tornquistia Paeckelmann, 1930 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Anopliidae (Family)
 Tornquistia Reed, 1896 † accepted as Toernquistia Reed, 1896 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)

Toroa
     Toroa Ahmed, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Toroa H. Sydow in Toro, 1926 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Toroaceae (Family)

Toronia
     Toronia L.A.S. Johnson & B.G. Briggs, 1975 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Toronia Barnes & McDunnough, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Cossidae (Family)

Torpedo
     Torpedo Duméril, 1806 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Torpediniformes (Order) > Torpedinidae (Family)
     Torpedo Forskål, 1775 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Torpedo Rafinesque, 1810 accepted as Torpedo Duméril, 1806 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Torpediniformes (Order) > Torpedinidae (Family)
 Torpedo Houttuyn, 1764 accepted as Torpedo Duméril, 1806 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Torpediniformes (Order) > Torpedinidae (Family)

Torquatella
     Torquatella Tilbrook, Hayward & Gordon, 2001 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Torquatellidae (Family)
     Torquatella Held, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Torquatella Yorke & Maplestone, 1926 accepted as Torquatoides Williams, 1929 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Habronematidae (Family)
 Torquatella Lankester, 1874 accepted as Strombidium Claparède & Lachmann, 1859 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Choreotrichida (Order) > Strobilidiidae (Family)

Torquilla
     Torquilla Brisson, 1760 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Torquilla Studer, 1820 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Chondrinidae (Family)

Torrentaria
     Torrentaria Gray, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Torrentaria Jordan & Evermann, 1896 accepted as Etheostoma Rafinesque, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Torrenticola
     Torrenticola Domin, 1928 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Podostemaceae (Family)
     Torrenticola Piersig, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Torrenticolidae (Family)

Torresia
 Torresia Castelnau, 1875 accepted as Choerodon Bleeker, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family)
 Torresia Ruiz & Pavon, 1794 accepted as Anthoxanthum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Torresia Brongersma, 1934 accepted as Pseudothecadactylus Brongersma, 1936 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Diplodactylidae (Family)
 Torresia Sanborn & Heath, 2014 accepted as Torrescada Sanborn & Heath, 2017 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Torresita
     Torresita Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Torresita Saunders, 1871 accepted as Torresita Thomson, 1878 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Torresita Gemminger & Harold, 1869 accepted as Torresita Thomson, 1878 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Torreya
     Torreya Arnott, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Cupressales (Order) > Taxaceae (Family)
 Torreya A. Eaton, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cornales (Order) > Loasaceae (Family)
 Torreya Rafinesque, 1819 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Torreya Rafinesque, 1818 accepted as Torreya Rafinesque, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Torreya Carus in Carus & Gerstaecker, 1863 accepted as Torrea Quatrefages, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
 Torreya K.P.J. Sprengel, 1820 accepted as Clerodendrum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)

Torrubia
 Torrubia Vellozo, 1829 accepted as Pisonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
 Torrubia Léveillé in Cesati & De Notaris, 1863 accepted as Cordyceps E.M. Fries, 1824 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Cordycipitaceae (Family)

Tortembolus
     Tortembolus Chamberlin, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
 Tortembolus Crosby, 1925 accepted as Spirembolus Chamberlin, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)

Torticella
     Torticella Gloger, 1842 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Torticella Rafinesque, 1833 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tortricomorpha
     Tortricomorpha Felder, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Tortricomorpha Amsel, 1955 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tortrix
     Tortrix Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
 Tortrix Oppel, 1811 accepted as Tortrix Oppel, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Aniliidae (Family)
 Tortrix Denis & Schiffermüller, 1775 accepted as Tortrix Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)

Tortula
     Tortula Westerlund, 1878 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tortula J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Tortula Roxburgh ex Willdenow, 1800 accepted as Tortula Roxburgh ex Willdenow, 1800 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
     Tortula Simon, 1880 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Sparassidae (Family)

Torula
     Torula Boisduval, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Torula Persoon, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Torulaceae (Family)

Torularia
 Torularia (Cosson) O.E. Schulz in Engler, 1924 accepted as Neotorularia I.C. Hedge & J. Léonard in J. Léonard, 1986 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Torularia Bonnemaison, 1828 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Batrachospermales (Order) > Batrachospermaceae (Family)

Torulites
     Torulites Kusina & Yatskov, 1987 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Torulites J. Pia in M. Hirmer, 1927 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Torulites Grüss, 1927 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Torulopsis
 Torulopsis Berlese, 1894 accepted as Candida Berkhout, 1923 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Saccharomycetales incertae sedis (Family)
 Torulopsis Oudemans, 1903 accepted as Gliomastix Guéguen, 1905 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Hypocreales incertae sedis (Family)
 Torulopsis Spegazzini, 1918 accepted as Torulopsiella H.B. Bender, 1932 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Torynocrinus
     Torynocrinus Seeley, 1866 † accepted as Torynocrinus Seeley, 1866 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Cyrtocrinida (Order) > Cyrtocrinida (awaiting allocation) (Family)
     Torynocrinus Szörényi, 1959 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Tosapusia
     Tosapusia Azuma, 1965 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Tosapusia Habe, 1964 accepted as Vexillum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Costellariidae (Family)

Totanus
     Totanus Cuvier, 1800 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
 Totanus Möhring, 1758 accepted as Totanus Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)

Toulminia
     Toulminia Zittel, 1878 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Lychniscosa (awaiting allocation) (Family)
 Toulminia Munsey, 1953 † accepted as Munseyella Bold, 1957 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cytheridae (Family)

Tournoueria
     Tournoueria Brusina, 1870 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tournoueria Munier-Chalmas, 1884 † accepted as Tournouerella Kilian, 1887 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Tovaria
     Tovaria Bolivar, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Tovaria Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Tovariaceae (Family)

Townsendia
     Townsendia W.J. Hooker, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Townsendia Williston, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Toxares
     Toxares Westwood, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Toxares Williams, 1891 accepted as Toxares Williams, 1891 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Toxarium
     Toxarium J.W. Bailey, 1854 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Toxariales (Order) > Toxariaceae (Family)
 Toxarium Haeckel, 1887 accepted as Lithocircus Müller, 1856 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Acanthodesmiidae (Family)

Toxeres
 Toxeres Agassiz, 1846 accepted as Toxeres Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Toxeres Schönherr, 1833 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxeres Germar, 1829 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxerus
 Toxerus Say, 1831 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxerus Schönherr, 1836 accepted as Centrinus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxeuma
     Toxeuma Walker, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tetracampidae (Family)
 Toxeuma Chun, 1906 accepted as Taonius Steenstrup, 1861 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Teuthoidea (Order) > Cranchiidae (Family)

Toxeutes
     Toxeutes Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Toxeutes Schönherr, 1843 accepted as Ludovix Laporte, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxicodendrum
     Toxicodendrum J. Gaertner, 1788 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
 Toxicodendrum Thunberg, 1796 accepted as Hyaenanche A.B. Lambert, 1797 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Picrodendraceae (Family)

Toxidium
     Toxidium Leconte, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Toxidium Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Toxoceras
     Toxoceras Chrétien, 1915 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Toxoceras d'Orbigny, 1842 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ancyloceratidae (Family)

Toxocerus
     Toxocerus Fairmaire, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Glaphyridae (Family)
 Toxocerus King, 1844 † accepted as Toxocerus King, 1844 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ancyloceratidae (Family)

Toxochernes
     Toxochernes Beier, 1932 accepted as Toxochernes Finnegan, 1934 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Chernetidae (Family)
 Toxochernes Finnegan, 1934 accepted as Chernes Menge, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Chernetidae (Family)

Toxocnemis
     Toxocnemis Macquart, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Toxocnemis Dombrow, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Toxodontophanus
     Toxodontophanus Moreno, 1882 accepted as Toxodontophanus Moreno, 1882 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Toxodontophanus Ameghino, 1887 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Toxomyia
     Toxomyia Felt, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Toxomyia Hull, 1973 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Toxonema
     Toxonema Böhm, 1895 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Toxonema Léger & Hesse, 1922 accepted as Toxoglugea Léger & Hesse, 1924 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Glugeida (Order) > Thelohaniidae (Family)

Toxoneura
 Toxoneura Cresson, 1887 accepted as Toxoneura Cresson, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Toxoneura Westwood, 1840 accepted as Toxonevra Macquart, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pallopteridae (Family)

Toxopeusia
     Toxopeusia Willemse, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Toxopeusia Oudemans, 1927 accepted as Fedrizzia Canestrini, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Fedrizziidae (Family)

Toxophorus
     Toxophorus Agassiz, 1846 accepted as Toxophorus Agassiz, 1846 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Toxophorus Schönherr, 1835 accepted as Ludovix Laporte, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxophorus Eggers, 1920 † accepted as Toxophthorus Wood, 1967 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Toxophorus Dejean, 1835 accepted as Erodiscus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Toxorhina
     Toxorhina Loew, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
     Toxorhina Loew in Berendt, 1845 accepted as Toxorhina Loew, 1850 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)

Toxorhinus
     Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
     Toxorhinus Dejean, 1835 accepted as Toxorhinus Lacordaire, 1866 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Toxorrhinus
 Toxorrhinus Gemminger & Harold, 1871 accepted as Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Toxorrhinus Champion, 1910 accepted as Toxorhinus Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Toxospora
 Toxospora Kudo, 1925 accepted as Toxoglugea Léger & Hesse, 1924 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Glugeida (Order) > Thelohaniidae (Family)
     Toxospora Voronin, 1993 · Fungi (Kingdom) > Rozellomycota (Phylum) > Microsporidea (Class) > Glugeida (Order) > Thelohaniidae (Family)

Toxostoma
     Toxostoma Wagler, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Mimidae (Family)
     Toxostoma Rafinesque, 1818 accepted as Toxostoma Rafinesque, 1818 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Toxostoma Rafinesque, 1831 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Toxotarsus
     Toxotarsus Macquart, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
 Toxotarsus Nonfried, 1892 accepted as Prochelyna Erichson, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Toxotes
     Toxotes Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Toxotidae (Family)
     Toxotes Cloquet, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Toxotidae (Family)

Toxotinus
 Toxotinus Bates, 1884 accepted as Stenocorus Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Toxotinus Fairmaire, 1893 accepted as Toxitiades Fairmaire, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Toxotropis
     Toxotropis Turczaninow, 1846 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Toxotropis Leconte, 1876 accepted as Ormiscus Waterhouse, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Toxotus
     Toxotus Dejean, 1821 accepted as Stenocorus Fabricius, 1775 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Toxotus Zetterstedt, 1828 accepted as Stenocorus Geoffroy, 1762 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tozeria
     Tozeria Tatzreiter, 1985 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Tozeria Otte & Alexander, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Oecanthidae (Family)

Tozzettia
     Tozzettia Hesse, 1924 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tozzettia Parlatore, 1854 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Tozzettia Savi, 1799 accepted as Alopecurus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trabaea
     Trabaea Roewer, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)
 Trabaea Simon, 1898 accepted as Trabea Simon, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Lycosidae (Family)

Trabutiella
 Trabutiella Theissen & H. Sydow, 1914 accepted as Phyllachora Nitschke ex Fuckel, 1870 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Phyllachorales (Order) > Phyllachoraceae (Family)
 Trabutiella F.L. Stevens, 1920 accepted as Diatractium H. Sydow & P. Sydow, 1921 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Diaporthales incertae sedis (Family)

Trachelanthus
     Trachelanthus Korotyaev, 1980 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachelanthus G. Kunze, 1850 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Trachelanthus Klotzsch, 1855 accepted as Begonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Begoniaceae (Family)

Trachelia
     Trachelia Scopoli, 1769 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Trachelia Audinet-Serville, 1834 accepted as Trachelissa Aurivillius, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trachelia Pfeiffer, 1853 accepted as Tetrentodon Pilsbry, 1903 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)

Trachelium
     Trachelium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
     Trachelium Dejean, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Trachelium J. Hill, 1756 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
     Trachelium Herrich-Schäffer, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Alydidae (Family)

Trachelius
     Trachelius Schrank, 1803 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Haptorida (Order) > Tracheliidae (Family)
     Trachelius Ehrenberg accepted as Trachelius Ehrenberg (nomen dubium)· Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)

Trachelizus
     Trachelizus Gyllenhal, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Trachelizus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Trachelizus Schönherr, 1840 accepted as Trachelizus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Trachelizus Solier in Brullé, 1834 accepted as Physea Brullé, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Trachelobdella
     Trachelobdella Moore, 1957 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Hirudinoidea (awaiting allocation) (Order) > Hirudinoidea (awaiting allocation) (Family)
     Trachelobdella Diesing, 1850 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Rhynchobdellida (Order) > Piscicolidae (Family)

Trachelophyllum
     Trachelophyllum Claparède & Lachmann, 1859 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Haptorida (Order) > Trachelophyllidae (Family)
 Trachelophyllum Levinsen, 1883 accepted as Notophyllum Örsted, 1843 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Phyllodocidae (Family)

Trachelorhachis
     Trachelorhachis Silvestri, 1898 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Aphelidesmidae (Family)
 Trachelorhachis Agassiz, 1846 accepted as Phlyctaeodes Newman, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trachelostyla
     Trachelostyla Kahl, 1932 accepted as Trachelostyla Kahl, 1932 (nomen nudum)· Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Trachelostylidae (Family)
     Trachelostyla Borror, 1972 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Trachelostylidae (Family)

Trachelus
     Trachelus Jurine, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cephidae (Family)
     Trachelus Dejean, 1821 accepted as Sibinia Germar, 1817 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachelus Solier in Gay, 1849 accepted as Trachalys White, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tracheomyia
     Tracheomyia Townsend, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
     Tracheomyia Rodhain & Bequaert, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Trachia
     Trachia Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Camaenidae (Family)
 Trachia Wright, 1855 † accepted as Thracia Leach in Sowerby, 1823 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)

Trachicephalus
     Trachicephalus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Synanceiidae (Family)
 Trachicephalus Steindachner, 1867 accepted as Trachycephalus Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)

Trachinotus
 Trachinotus Gistl, 1848 accepted as Trachinotus Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trachinotus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachinotus Berlese, 1881 accepted as Trachytes Michael, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Trachytidae (Family)

Trachinus
     Trachinus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trachinidae (Family)
 Trachinus Swainson, 1839 accepted as Trachurus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)

Trachodes
     Trachodes Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachodes D. Don, 1830 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trachodus
 Trachodus Weise, 1891 accepted as Acalles Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachodus Klug, 1833 accepted as Trachodes Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachoma
     Trachoma Wallengren, 1880 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Trachoma Garay, 1972 accepted as Tuberolabium Yamamoto, 1924 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trachurus
     Trachurus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachurus Plumier in Lacepède, 1801 accepted as Trachurus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachurus Gronow in Gray, 1854 accepted as Trachurus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)

Trachusa
     Trachusa Panzer, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)
 Trachusa Jurine, 1801 accepted as Stelis Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)
 Trachusa Jurine, 1807 accepted as Stelis Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)

Trachyaletes
 Trachyaletes Vishnu-Mittre, 1956 † accepted as Trachyaletes Vishnu-Mittre, 1956 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Trachyaletes Timofeev † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Trachyaster
     Trachyaster Pomel, 1869 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Palaeostomatidae (Family)
     Trachyaster Pomel, 1883 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Palaeostomatidae (Family)
     Trachyaster Spencer, 1913 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Asteroidea (awaiting allocation) (Order) > Asteroidea (awaiting allocation) (Family)

Trachybaikalia
     Trachybaikalia Westerlund, 1902 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trachybaikalia Dall, 1877 † accepted as Trachybaikalia Dall, 1877 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trachybaikalia Nevill, 1884 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trachycaulus
     Trachycaulus Schulze, 1885 accepted as Trachycaulus Schulze, 1886 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)
     Trachycaulus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Euplectellidae (Family)

Trachycephalus
     Trachycephalus Gray, 1845 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Iguanidae (Family)
     Trachycephalus Tschudi, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hylidae (Family)
 Trachycephalus Agassiz, 1845 accepted as Trachicephalus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Synanceiidae (Family)
 Trachycephalus De Vis, 1884 accepted as Caracanthus Krøyer, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Scorpaenidae (Family)
 Trachycephalus Ferguson, 1875 accepted as Nannophrys Günther, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)

Trachycoccus
     Trachycoccus Borkhsenius, 1950 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Trachycoccus Ferris, 1955 accepted as Hypericicoccus Williams, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)

Trachycystis
 Trachycystis Pascher, 1939 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)
     Trachycystis Pilsbry, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Trachycystis S.O. Lindberg, 1868 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Mniaceae (Family)

Trachydemus
     Trachydemus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachydemus Zelinka, 1907 accepted as Kinorhynchus Sheremetevskij, 1974 · Animalia (Kingdom) > Kinorhyncha (Phylum) > Allomalorhagida (Class) > (Order) > Pycnophyidae (Family)

Trachyderes
     Trachyderes Schönherr, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trachyderes Koch, 1955 accepted as Somaticus Hope, 1840 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trachyderma
     Trachyderma Phillips, 1848 † (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Annelida (awaiting allocation) (Class) > Annelida (awaiting allocation) (Order) > Annelida (awaiting allocation) (Family)
     Trachyderma Solier, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Trachyderma (R. Imazeki) R. Imazeki, 1952 accepted as Ganoderma P.A. Karsten, 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Ganodermataceae (Family)
 Trachyderma Wiegmann, 1829 accepted as Heloderma Wiegmann, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Helodermatidae (Family)
 Trachyderma Gravenhorst, 1829 accepted as Spudaeus Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Trachyderma Norman, 1853 accepted as Pannaria Delise ex Bory, 1828 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Peltigerales (Order) > Pannariaceae (Family)
     Trachyderma Latreille in Bory, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trachydermus
 Trachydermus Agassiz, 1845 accepted as Trachidermus Heckel, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Cottidae (Family)
 Trachydermus Desbrochers, 1905 accepted as Trachydemus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachydomus
 Trachydomus Portevin, 1935 accepted as Trachydemus Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachydomus Cossmann, 1918 † accepted as Trachydomia Meek & Worthen, 1866 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Trachyspiridae (Family)

Trachylepis
     Trachylepis Pander, 1856 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Trachylepis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Trachylia
 Trachylia Tuckerman, 1848 accepted as Cyphelium Acharius, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)
 Trachylia E.M. Fries, 1817 accepted as Arthonia E. Acharius, 1806 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Arthoniaceae (Family)

Trachymantis
     Trachymantis Methuen, 1920 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)
     Trachymantis Giglio-Tos, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Trachymetopon
     Trachymetopon Beier, 1960 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Trachymetopon Hennig, 1939 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Sarcopterygii (Class) > Coelacanthiformes (Order) > Mawsoniidae (Family)

Trachynema
     Trachynema Cobb, 1920 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
 Trachynema Gegenbaur, 1854 accepted as Rhopalonema Gegenbaur, 1857 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Trachylina (Order) > Rhopalonematidae (Family)
     Trachynema P.M. Pedersen, 1985 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Ectocarpales (Order) > Chordariaceae (Family)

Trachynotus
     Trachynotus Dahl, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
     Trachynotus Bell, 1862 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Goniodromitidae (Family)
     Trachynotus Gravenhorst, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trachynotus Timotheew, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Polydesmidae (Family)
 Trachynotus (Müller Hal.) J. Cardot ex M. Fleischer, 1904 accepted as Trachynotus (Müller Hal.) J. Cardot ex M. Fleischer, 1904 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Calymperaceae (Family)
 Trachynotus Agassiz, 1846 accepted as Trachinotus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trachynotus Schrammen, 1924 † accepted as Trachynoton de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Lithistida (awaiting allocation) (Family)
 Trachynotus Kramer, 1876 accepted as Trachytes Michael, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Trachytidae (Family)
     Trachynotus Haag-Rutenberg, 18?? accepted as Trachynotus Latreille in Bory, 1828 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Trachynotus Latreille in Bory, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trachyops
     Trachyops Dallas, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Trachyops Peters, 1865 accepted as Trachops Gray, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
     Trachyops Rondani, 1880 accepted as Trachyopella Duda, 1920 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Trachyostus
     Trachyostus Browne, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachyostus Schedl, 1939 accepted as Trachyostus Browne, 1962 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachypachys
 Trachypachys Lacordaire, 1854 accepted as Trachypachus Motschoulsky, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trachypachys Gemminger & Harold, 1868 accepted as Trachypachus Motschoulsky, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trachypachidae (Family)

Trachyphlaeus
 Trachyphlaeus Stephens, 1829 accepted as Trachyphloeus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trachyphlaeus Dejean, 1821 accepted as Trachyphloeus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachyphloeus
     Trachyphloeus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trachyphloeus Attems, 1933 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Cryptodesmidae (Family)

Trachyphyllum
     Trachyphyllum Ulitina, 1975 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Stauriida (Order) > Entelophyllidae (Family)
     Trachyphyllum Gepp in Hiern, 1901 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Pterigynandraceae (Family)

Trachypleura
     Trachypleura Jaekel, 1900 † · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Neoloricata (awaiting allocation) (Order) > Neoloricata (awaiting allocation) (Family)
 Trachypleura Thorne, 1939 accepted as Trachypleurosum Andrássy, 1959 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Trachypleurosidae (Family)

Trachypoma
 Trachypoma Giebel, 1871 accepted as Eremophilus Humboldt, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Trichomycteridae (Family)
     Trachypoma Günther, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Serranidae (Family)

Trachypora
     Trachypora Milne-Edwards & Haime, 1851 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Favositidae (Family)
 Trachypora Verrill, 1864 accepted as Oxypora Saville-Kent, 1871 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Merulinidae (Family)

Trachypteris
     Trachypteris E.F. André ex Christ, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)
 Trachypteris Kirby, 1837 accepted as Melanophila Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Trachypterus
 Trachypterus Schneider, 1801 accepted as Trachipterus Goüan, 1770 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lampriformes (Order) > Trachipteridae (Family)
 Trachypterus Dalla Torre, 1897 accepted as Trachypetus Guérin, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Trachypus
     Trachypus Klug, 1810 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Crabronidae (Family)
     Trachypus Reinwardt & Hornschuch, 1829 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Meteoriaceae (Family)
 Trachypus Bataille, 1908 accepted as Leccinum S.F. Gray, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Boletaceae (Family)

Trachypyrgula
     Trachypyrgula Radoman, 1955 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Trachypyrgula Cossmann, 1921 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trachyrhinus
     Trachyrhinus Weed, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Sclerosomatidae (Family)
     Trachyrhinus Silvestri, 1897 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Diplopoda (awaiting allocation) (Order) > (Family)
 Trachyrhinus Sharp, 1896 accepted as Trachyphilus Faust, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachys
     Trachys Fabricius, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
     Trachys Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trachysma
     Trachysma Jeffreys, 1874 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Pendromidae (Family)
 Trachysma G.O. Sars, 1878 accepted as Torellia Jeffreys, 1867 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Capulidae (Family)

Trachysoma
     Trachysoma Bell, 1858 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Glypheidae (Family)
 Trachysoma Attems, 1898 accepted as Trachygona Cook & Collins, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Trachygonidae (Family)
 Trachysoma Penecke, 1894 accepted as Trachystyphlus Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trachysphaera
     Trachysphaera Heller, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Glomerida (Order) > Trachysphaeridae (Family)
     Trachysphaera R.J. Tabor & R.H. Bunting, 1923 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Pythiales (Order) > Pythiaceae (Family)

Trachystola
     Trachystola Pascoe, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trachystola Dejean, 1835 accepted as Trachystola Pascoe, 1862 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trachystoma
     Trachystoma Ogilby, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mugilidae (Family)
     Trachystoma O.E. Schulz, 1916 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Trachytherium
 Trachytherium Gervais, 1849 † accepted as Halitherium Kaup, 1838 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Dugongidae (Family)
     Trachytherium Gervais, 1849, nom. nud. † accepted as Halitherium Kaup, 1838 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Dugongidae (Family)

Trachythyone
     Trachythyone Studer, 1876 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)
 Trachythyone auctt., non Studer, 1876 accepted as Leptopentacta Clark, 1938 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Dendrochirotida (Order) > Cucumariidae (Family)

Tragelaphus
     Tragelaphus Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Tragelaphus Ogilby, 1836 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tragiopsis
 Tragiopsis Pomel, 1874 accepted as Stoibrax Rafinesque, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tragiopsis H. Karsten, 1859 accepted as Sebastiania K.P.J. Sprengel, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Tragiscus
     Tragiscus Klug, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tragiscus Fieber, 1858 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Tragiscus Thomson, 1857 accepted as Tragicoschema Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tragium
     Tragium Oken, 1815 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Tragium K.P.J. Sprengel, 1813 accepted as Pimpinella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Tragocephala
 Tragocephala Harris, 1842 accepted as Chortophaga Saussure, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Tragocephala Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tragocephala Laporte, 1840 accepted as Tragocephala Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tragocerus
     Tragocerus Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tragocerus Gaudry, 1861 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Tragocerus Dejean, 1821 accepted as Tragocerus Latreille in Cuvier, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tragomma
     Tragomma Held, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tragomma Hodgson, 1848 accepted as Gazella de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tragopa
     Tragopa Lesson, 1835 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tragopa Latreille in Cuvier, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)

Tragopan
     Tragopan Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
 Tragopan Möhring, 1758 accepted as Tragopan Möhring, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Coraciiformes (awaiting allocation) (Family)

Tragopogon
     Tragopogon Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tragopogon (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tragops
     Tragops Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Tragops Hodgson, 1847 accepted as Gazella de Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tragos
     Tragos Schweigger, 1819 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Tragos Goldfuss, 1829 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Tragosita
 Tragosita Paykull, 1798 accepted as Trogossita Olivier, 1790 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)
 Tragosita Cederhielm, 1798 accepted as Tenebroides Piller & Mitterpacher, 1783 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trogossitidae (Family)

Tragosoma
     Tragosoma Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tragosoma Dejean, 1835 accepted as Tragosoma Audinet-Serville, 1832 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tragulus
     Tragulus Brisson, 1762 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Tragulidae (Family)
     Tragulus Smith, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Tragulus Ogilby, 1837 accepted as Neotragus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Tragulus Boddaert, 1785 accepted as Moschus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Moschidae (Family)

Tragus
 Tragus Agassiz, 1846 accepted as Tragus Agassiz, 1846 · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Tragus A. Haller, 1768 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Tragus Panzer, 1813 accepted as Brachypodium Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Tragus Schrank, 1798 accepted as Capra Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Trailia
     Trailia G.K. Sutherland, 1915 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Microascales (Order) > Halosphaeriaceae (Family)
     Trailia Cameron, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Trailia H. Sydow, 1922 accepted as Puccinia Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Tralia
     Tralia Gray in Turton, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)
 Tralia Gray, 1840, nom. nud. accepted as Tralia Gray in Turton, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)

Trama
     Trama Harvey, 1875 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trama Heyden, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Trametites
 Trametites A. Straus, 1950 † accepted as · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Hymenochaetales (Order) > Hymenochaetaceae (Family)
     Trametites Meschinelli, 1892 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Trammerella
     Trammerella Kozur, 1973 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Trammerella Orchard, 2005 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodonta (awaiting allocation) (Order) > (Family)

Transbothriurus
 Transbothriurus Lowe & Fet, 1998 accepted as Timogenes Simon, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)
     Transbothriurus Mello-Leitão, 1945 accepted as Timogenes Simon, 1881 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Bothriuridae (Family)

Trapelus
     Trapelus Kaup, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)
     Trapelus Cuvier, 1817 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Trapezia
     Trapezia Latreille, 1825 accepted as Trapezia Latreille, 1828 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trapeziidae (Family)
     Trapezia Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trapeziidae (Family)
     Trapezia Carbonnel, 1969 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cyprididae (Family)

Trapezium
     Trapezium Megerle von Mühlfeld, 1811 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Trapezidae (Family)
 Trapezium Randall, 1840 accepted as Trapezia Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trapeziidae (Family)

Trapezonotus
     Trapezonotus Fieber, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
 Trapezonotus Sahlberg, 1913 accepted as Omonadus Mulsant & Rey, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthicidae (Family)

Traphecocorynus
 Traphecocorynus Agassiz, 1846 accepted as Traphecorynus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Traphecocorynus Gemminger & Harold, 1871 accepted as Traphecorynus Schönherr, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Traquairia
     Traquairia Carruthers, 1873 † · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Traquairia Fritsch, 1893 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Traubia
     Traubia Smit, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Stivaliidae (Family)
     Traubia H.N. Moldenke, 1963 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Traubiella
     Traubiella Schwarzhans, 2010 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beryciformes (Order) > Holocentroidei incertae sedis (Family)
 Traubiella Vercammen-Grandjean, 1965 accepted as Sasatrombicula Vercammen-Grandjean, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)

Traulotes
 Traulotes Gistl, 1848 accepted as Traulotes Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Traulotes Gistl, 1848 accepted as Harrisia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Traunfelsia
     Traunfelsia Laidlaw, 1906 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Boniniidae (Family)
     Traunfelsia Sopott-Ehlers & Schmidt, 1975 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Polycladida (Order) > Boniniidae (Family)

Trautscholdia
     Trautscholdia † (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferida (awaiting allocation) (Family)
 Trautscholdia Cox & Arkell, 1948 † accepted as Astarte J. Sowerby, 1816 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Astartidae (Family)

Travassosina
     Travassosina Vaz, 1932 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
 Travassosina Witenberg, 1932 accepted as Centrorhynchus Lühe in Brauer, 1911 · Animalia (Kingdom) > Acanthocephala (Phylum) > Palaeacanthocephala (Class) > Polymorphida (Order) > Centrorhynchidae (Family)

Traversia
     Traversia J.D. Hooker, 1864 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Traversia Rothschild, 1894 accepted as Xenicus Gray, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Acanthisittidae (Family)

Trecticus
 Trecticus Weise, 1891 accepted as Orchestes Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trecticus Reitter in Heyden, Reitter & Weise, 1906 accepted as Orchestes Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tremastegina
     Tremastegina Brönnimann, 1951 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Tremastegina Brönnimann, 1950 † accepted as Eoconuloides Cole & Bermúdez, 1944 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Boreloididae (Family)

Tremaster
     Tremaster Verrill, 1880 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Spinulosida (Order) > Asterinidae (Family)
     Tremaster Dudicourt, Néraudeau, Nicolleau, Ceulemans & Boutin, 2005 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Echinoidea (awaiting allocation) (Order) > Echinoidea (awaiting allocation) (Family)

Trematocarpus
     Trematocarpus Kützing, 1843 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Plocamiales (Order) > Sarcodiaceae (Family)
 Trematocarpus A. Zahlbruckner, 1891 accepted as Trematolobelia A. Zahlbruckner ex J.F. Rock, 1913 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)

Trematoceras
     Trematoceras Eichwald, 1851 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Orthoceratidae (Family)
 Trematoceras Hyatt, 1884 † accepted as Streptodiscus Miller, 1892 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Goniatitidae (Family)
 Trematoceras Whitfield, 1882 † accepted as Tylorthoceras Miller, 1932 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Oncocerida (Order) > Rutoceratidae (Family)

Trematodiscus
     Trematodiscus Haeckel, 1860 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Trematodiscus Meek & Worthen, 1861 † accepted as Streptodiscus Miller, 1892 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Goniatitidae (Family)

Trematopsis
     Trematopsis Olson, 1956 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Labyrinthodontia (Order) > Labyrinthodontia (awaiting allocation) (Family)
 Trematopsis Ranzani, 1839 accepted as Mola Koelreuter, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Molidae (Family)

Trematopygus
     Trematopygus Holmgren, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Trematopygus d'Orbigny, 1857 † accepted as Plagiochasma Pomel, 1883 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Euechinoidea incertae sedis (Order) > Pygaulidae (Family)

Trematosphaerites
     Trematosphaerites J. Grüss, 1924 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Trematosphaerites Meschinelli, 1892 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Trematosteus
     Trematosteus Gross, 1932 † · Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)
     Trematosteus Jaekel, 1927 † accepted as Trematosteus Gross, 1932 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Placodermi (Class) > Arthrodira (Order) > Arthrodira (awaiting allocation) (Family)

Tremella
     Tremella Persoon ex Saint Amans, 1821 · Fungi (Kingdom) > Basidiomycota (Phylum) > Tremellomycetes (Class) > Tremellales (Order) > Tremellaceae (Family)
     Tremella Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Tremellomycetes (Class) > Tremellales (Order) > Tremellaceae (Family)
     Tremella Linnaeus ex Arthur, 1901 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Tremula
     Tremula Dumortier, 1826 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)
     Tremula Howe & Cavalier-Smith in Howe, Bass, Scoble, Lewis, Vickerman, Arndt & Cavalier-Smith, 2011 · Chromista (Kingdom) > Cercozoa (Phylum) > Skiomonadea (Class) > Tremulida (Order) > Tremulida incertae sedis (Family)

Trentepohlia
 Trentepohlia A.W. Roth, 1800 accepted as Trentepohlia A.W. Roth, 1800 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Trentepohlia Boeckeler, 1858 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Trentepohlia W.H. Harvey in W.J. Hooker, 1833 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Acrochaetiales (Order) > Acrochaetiaceae (Family)
     Trentepohlia Martius, 1817 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Trentepohliales (Order) > Trentepohliaceae (Family)
 Trentepohlia N. Pringsheim, 1862 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Acrochaetiales (Order) > Acrochaetiaceae (Family)
     Trentepohlia Bigot, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)

Trentonia
 Trentonia A.C. Stokes, 1886 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Raphidophyceae (Class) > Chattonellales (Order) > Vacuolariaceae (Family)
     Trentonia Pickerill & Forbes, 1978 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta incertae sedis (Family)

Trepidaria
 Trepidaria Meigen, 1800 accepted as Trepidaria Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Micropezidae (Family)
 Trepidaria Swinderen, 1822 accepted as Seioptera Kirby, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Ulidiidae (Family)

Treptoceras
     Treptoceras Flower, 1942 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Nautilida (Order) > Nautilidae (Family)
     Treptoceras Enay, 1960 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Treptoplatypus
     Treptoplatypus Schedl, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Treptoplatypus Schedl, 1939 accepted as Treptoplatypus Schedl, 1972 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trestonia
     Trestonia Rafinesque, 1815 accepted as Toxicum Latreille, 1802 (junior objective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Trestonia Buquet in Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tresus
     Tresus Walckenaer, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Tresus Gray, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactridae (Family)

Tretaspis
     Tretaspis M'Coy, 1849 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Trinucleidae (Family)
 Tretaspis Murchison, 1839 † accepted as Tretaspis Murchison, 1839 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tretinus
 Tretinus Bedel, 1883 accepted as Polydius Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tretinus Jekel, 1875 accepted as Polydius Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tretocephala
     Tretocephala Frey · Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Diplostraca (Order) > Chydoridae (Family)
     Tretocephala C.V. Subramanian, 1995 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tretodictyum
     Tretodictyum Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Tretodictyidae (Family)
     Tretodictyum Schulze, 1885 accepted as Tretodictyum Schulze, 1886 (nomen nudum)· Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Tretodictyidae (Family)

Treubella
 Treubella Pierre, 1890 accepted as Palaquium Blanco, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Treubella Van Tieghem, 1894 accepted as Amylotheca Van Tieghem, 1894 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)

Treubia
     Treubia K.I. Goebel, 1890 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Haplomitriopsida (Class) > Treubiales (Order) > Treubiaceae (Family)
 Treubia Pierre ex Boerlage, 1890 accepted as Treubia Pierre ex Boerlage, 1890 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Icacinales (Order) > Icacinaceae (Family)

Trevirania
     Trevirania A. Roth in F. Weber, 1810 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
     Trevirania C. Sprengel, 1817 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Trevirania G. Heynhold, 1847 accepted as Psychotria Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Trevoria
     Trevoria Ashmead, 1900 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trevoria F.C. Lehmann, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trewavasia
     Trewavasia White & Moy-Thomas, 1941 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pycnodontiformes (Order) > Pycnodontiformes (awaiting allocation) (Family)
 Trewavasia Thys van den Audenaerde, 1969 accepted as Tilapia Smith, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cichlidae (Family)

Triacanthochirus
 Triacanthochirus Scheerpeltz, 1933 accepted as Priochirus Sharp, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Triacanthochirus Bernhauer, 1923 accepted as Priochirus Sharp, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Triacanthus
     Triacanthus Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Triacanthidae (Family)
 Triacanthus Bernhauer, 1903 accepted as Priochirus Sharp, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Triacanthus Kim & Moon, 2013 accepted as Suncheonacanthus Venmathi Maran, Moon, Adday & Tang, 2016 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Taeniacanthidae (Family)

Triacis
     Triacis Grisebach, 1860 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)
 Triacis Agassiz, 1846 accepted as Triakis Müller & Henle, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Carcharhiniformes (Order) > Triakidae (Family)

Triacodon
 Triacodon Marsh, 1871 † accepted as Viverravus Marsh, 1872 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Viverravidae (Family)
     Triacodon Cope, 1872 † accepted as Uintacyon Leidy, 1872 † (junior subjective synonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > (Order) > Miacidae (Family)

Triacrinus
     Triacrinus Münster, 1839 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Disparida (Order) > Disparida (awaiting allocation) (Family)
     Triacrinus Ringueberg, 1884 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Triacrinus Termier & Termier, 1950 † accepted as Becharocrinus Termier & Termier, 1956 † · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Crinoidea (awaiting allocation) (Order) > Crinoidea (awaiting allocation) (Family)

Triactis
     Triactis Klunzinger, 1877 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Aliciidae (Family)
     Triactis Haeckel, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria (awaiting allocation) (Family)

Triadenia
 Triadenia Miquel, 1857 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Triadenia Spach, 1836 accepted as Hypericum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Hypericaceae (Family)

Triadinium
     Triadinium Fiorentini, 1890 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Triadinium J.D. Dodge & J.J. Lee, 1985 accepted as Scrippsiella E. Balech ex A.R. Loeblich III, 1965 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Thoracosphaerales (Order) > Thoracosphaeraceae (Family)
     Triadinium Dodge, 1981 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Thoracosphaerales (Order) > Thoracosphaeraceae (Family)

Triadodiscus
     Triadodiscus Bandel, 1993 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
     Triadodiscus Piller, 1983 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Involutinida (Order) > Involutinidae (Family)

Triaena
     Triaena Hübner, 1818 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Triaena Kunth in Humboldt, Bonpland & Kunth, 1816 accepted as Bouteloua Lagasca, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Triaena McLachlan, 1865 accepted as Triaenodes McLachlan, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Leptoceridae (Family)
 Triaena Tullberg, 1871 accepted as Friesea Dalla Torre, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Neanuridae (Family)
 Triaena Menge, 1866 † accepted as Mengea Grote, 1886 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Strepsiptera (Order) > Mengeidae (Family)
 Triaena Leconte, 1847 accepted as Zezea Csiki, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Triaenodon
     Triaenodon Müller & Henle, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Carcharhiniformes (Order) > Carcharhinidae (Family)
     Triaenodon Philippi, 1876 accepted as Triaenodon Philippi, 1876 (nomen dubium)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pomacentridae (Family)

Triaenophorus
     Triaenophorus Rudolphi, 1793 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Triaenophoridae (Family)
 Triaenophorus Gill, 1859 accepted as Tridentiger Gill, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Triangularia
     Triangularia Boedijn, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariales (Order) > Lasiosphaeriaceae (Family)
     Triangularia Marinescu, 1973 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Triangularia Poletaev, 2001 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Strophopleuridae (Family)
     Triangularia Frech, 1894 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Triangulina
     Triangulina F.H. Cramer, 1964 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
     Triangulina V.S. Maljavkina, 1949 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Triangulina Quilty, 1970 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Triangulopsis
     Triangulopsis Guérin-Ganivet, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Kentrogonida (Order) > Lernaeodiscidae (Family)
     Triangulopsis H. Döring, 1961 † (uncertain)· Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Trianthera
     Trianthera Conwentz, 1886 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Lauraceae (Family)
 Trianthera R. Wettstein in Engler & Prantl, 1891 accepted as Stemotria R. Wettstein & Harms ex Engler in Engler & Prantl, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Calceolariaceae (Family)

Triaristella
 Triaristella C.A. Luer, 1978 accepted as Trisetella C.A. Luer, 1980 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Triaristella F.G. Brieger in F.G. Brieger et al., 1975 accepted as Trisetella C.A. Luer, 1980 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Triaristella V.S. Maljavkina, 1949 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Triarthra
     Triarthra Dalla Torre, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
 Triarthra Gistl, 1848 accepted as Triarthria Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Triarthra Ehrenberg, 1832 accepted as Filinia Bory De St. Vincent, 1824 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Flosculariaceae (Order) > Trochosphaeridae (Family)

Triarthron
     Triarthron Märkel, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
 Triarthron Baillon, 1892 accepted as Phthirusa C.F.P. Martius, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Santalales (Order) > Loranthaceae (Family)

Triaspis
     Triaspis Burchell, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Triaspis Haliday, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Triaspis accepted as Lepidosaphes Shimer, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)

Triassolestes
     Triassolestes Tillyard, 1918 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Triassolestes Reig, 1963 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Saurischia (awaiting allocation) (Family)

Tribacis
     Tribacis Billberg, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tribacis Motschoulsky, 1850 accepted as Carabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Triblemma
     Triblemma R. Brown ex C. Sprengel, 1831 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Triblemma R.C. Ching, 1978 accepted as Diplazium O. Swartz, 1801 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Athyriaceae (Family)

Triblidium
     Triblidium Persoon, 1822 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Patellariales (Order) > Patellariaceae (Family)
     Triblidium Rebentisch, 1804 · Fungi (Kingdom) > Ascomycota (Phylum) > Archaeorhizomycetes (Class) > Triblidiales (Order) > Triblidiaceae (Family)
 Triblidium Walcott, 1912 † accepted as Tryblidium Lindström, 1880 † · Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > Tryblidiida (Order) > Tryblidiidae (Family)

Tribolium
     Tribolium Macleay, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tribolium Desvaux, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Tribolium Mulsant, 1854 accepted as Tribolium Macleay, 1825 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tribolocara
     Tribolocara Lacordaire, 1859 accepted as Trilobocara Solier, 1851 (misspelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tribolocara Gemminger & Harold, 1870 accepted as Tribolocara Lacordaire, 1859 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tribolodon
     Tribolodon Sauvage, 1883 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Tribolodon Seeley, 1895 † accepted as Bolotridon Coad, 1977 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Thrinaxodontidae (Family)

Tribonophora
 Tribonophora Hübner, 1808 accepted as Paectes Hübner, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Euteliidae (Family)
 Tribonophora Hübner, 1806 accepted as Paectes Hübner, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Euteliidae (Family)
 Tribonophora Rivalier, 1950 accepted as Chaetodera Jeannel, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Tribrachia
 Tribrachia Lindley, 1824 accepted as Bulbophyllum Du Petit-Thouars, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tribrachia Schubert, 1912 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Nodosariidae (Family)
 Tribrachia A. Mann, 1925 accepted as Pseudotribrachia S. Blanco & C.E. Wetzel, 2016 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Tribrachium
     Tribrachium Weltner, 1882 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)
 Tribrachium Ridley, 1884 accepted as Tribrachium Weltner, 1882 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Ancorinidae (Family)

Tribula
     Tribula J. Hill, 1764 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Tribula Cossmann, 1925 accepted as Trituba Jousseaume, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Triphoridae (Family)

Tribulus
     Tribulus Sowerby, 1839 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Tribulus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zygophyllales (Order) > Zygophyllaceae (Family)
     Tribulus H. Adams & A. Adams, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
 Tribulus Kobelt, 1877 accepted as Murex Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Tribura
     Tribura Hodgson, 1844 accepted as Tribura Hodgson, 1844 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tribura Hodgson, 1845 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tricanus
 Tricanus Grouvelle, 1913 accepted as Tricanus Grouvelle, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)
     Tricanus Erichson, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)

Tricardia
     Tricardia Torrey in S. Watson, 1871 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Tricardia Ameghino, 1891 † accepted as Eocardia Ameghino, 1887 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Eocardiidae (Family)

Tricarinella
     Tricarinella Dam & Schijfsma, 1945 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Glandulinidae (Family)
     Tricarinella A. Savoretti, A.C. Bippus, R.A, Stockey, G.W. Rothwell & A.M.F. Tomescu, 2018 † · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Grimmiaceae (Family)

Tricelis
     Tricelis Ehrenberg in Hemprich & Ehrenberg, 1831 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Turbellaria (awaiting allocation) (Order) > Turbellaria (awaiting allocation) (Family)
     Tricelis Quatrefage, 1845 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Platyhelminthes incertae sedis (Class) > Platyhelminthes incertae sedis (Order) > Platyhelminthes incertae sedis (Family)

Tricella
     Tricella Daniels, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Tricella Lopatin, 1988 accepted as Cryptocephalus Geoffroy, 1762 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Tricella W.H. Long, 1912 accepted as Phragmopyxis Dietel in Engler & Prantl, 1897 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Uropyxidaceae (Family)
 Tricella Forster & Platnick, 1981 accepted as Tricellina Forster & Platnick in Platnick, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Anapidae (Family)
     Tricella Catalano & Dietrich, 2017 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Tricellaria
     Tricellaria Fleming, 1828 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Candidae (Family)
     Tricellaria Pflug, 1965 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Tricentrium
 Tricentrium Lütken, 1874 accepted as Trikentrion Ehlers, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Raspailiidae (Family)
 Tricentrium Ridley, 1879 accepted as Trikentrion Ehlers, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Raspailiidae (Family)

Tricentrum
     Tricentrum Townes, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Tricentrum A.P. de Candolle, 1828 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Triceras
     Triceras H. von Lobarzewski, 1840 · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Triceras Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Chamaeleonidae (Family)

Triceratia
 Triceratia Haswell, 1883 accepted as Pontogenia Claparède, 1868 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Aphroditidae (Family)
 Triceratia A. Richard in Sagra, 1845 accepted as Sicydium Schlechtendal, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)

Triceros
 Triceros Swainson, 1839 accepted as Trioceros Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Chamaeleonidae (Family)
 Triceros W. Griffith, 1854 accepted as Gomphogyne W. Griffith, 1845 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
 Triceros Loureiro, 1790 accepted as Turpinia Ventenat, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Crossosomatales (Order) > Staphyleaceae (Family)

Trichadenia
     Trichadenia Thwaites, 1855 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Achariaceae (Family)
 Trichadenia H. Wiehler, 1976 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Trichadjinga
     Trichadjinga Breuning, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trichadjinga Breuning, 1976 accepted as Trichadjinga Breuning, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichaeta
     Trichaeta Spencer, 1902 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Megascolecidae (Family)
     Trichaeta Becker, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Trichaeta Swinhoe, 1892 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Trichaeta Palisot de Beauvois, 1812 accepted as Trisetaria Forsskål, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trichantha
 Trichantha Triana, 1855 accepted as Bonamia Du Petit-Thouars, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
 Trichantha W.J. Hooker, 1844 accepted as Columnea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Trichanthera
     Trichanthera Kunth in Humboldt, Bonpland & Kunth, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Trichanthera Ehrenberg, 1829 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Trichanthidium
     Trichanthidium Moure, 1947 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trichanthidium Cockerell, 1930 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Megachilidae (Family)

Trichaptum
     Trichaptum Murrill, 1904 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Polyporaceae (Family)
     Trichaptum Brongniart, 1885 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Protorthoptera (Order) > Protorthoptera (awaiting allocation) (Family)

Trichaptus
     Trichaptus Gemminger & Harold, 1871 accepted as Trichaptus Gemminger & Harold, 1871 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trichaptus Pascoe, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trichaptus Germar, 1829 accepted as Trichaptus Pascoe, 1880 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tricharia
     Tricharia Fée, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Gomphillaceae (Family)
     Tricharia Karl in Dahl, 1928 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Tricharia Boudier, 1885 accepted as Tricharina Eckblad, 1968 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)

Trichas
     Trichas Swainson, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)
     Trichas Gloger in Froriep, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Trichaspis
     Trichaspis Spaeth, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Trichaspis Weise, 1923 accepted as Nototrichaspis Hincks, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Trichaster
     Trichaster L. Agassiz, 1836 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Phrynophiurida (Order) > Euryalidae (Family)
 Trichaster Quenstedt, 1875 † accepted as Trichasteropsis Eck, 1879 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stelleroidea (Class) > Hemizonida (Order) > Palasterinidae (Family)
 Trichaster Czerniaïev, 1845 accepted as Geastrum Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Geastrales (Order) > Geastraceae (Family)

Trichasterina
     Trichasterina Schulze in Roemer & Schaudinn, 1900 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Trichasterina G. Arnaud, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Asterinaceae (Family)

Trichaulax
     Trichaulax Kraatz, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Trichaulax K. Vollesen, 1992 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Trichaulus
     Trichaulus Mayr, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Trichaulus Enderlein, 1904 accepted as Linognathus Enderlein, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Linognathidae (Family)

Trichechus
     Trichechus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Trichechidae (Family)
 Trichechus Linnaeus, 1766 accepted as Odobenus Brisson, 1762 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Odobenidae (Family)

Trichecus
 Trichecus Cuvier, 1829 accepted as Odobenus Brisson, 1762 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Odobenidae (Family)
 Trichecus Müller, 1773 accepted as Trichechus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Trichechidae (Family)
 Trichecus Owken, 1816 accepted as Trichechus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Trichechidae (Family)

Trichellopsis
     Trichellopsis Bezzi, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Trichellopsis Maessen, 1955 accepted as Enterobryus J. Leidy, 1850 · Protozoa (Kingdom) > Choanozoa (Phylum) > Ichthyosporea (Class) > Eccrinida (Order) > Eccrinidae (Family)

Trichelodes
 Trichelodes Peacock, 1978 accepted as Trichelodes Carter, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
     Trichelodes Carter, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Trichelodes Lawrence & Slipinski, 2005 accepted as Trichelodes Carter, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Trichephelia
     Trichephelia Alexander, 1938 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Trichephelia Curran, 1934 accepted as Trichephelia Curran, 1934 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Trichestes
 Trichestes Blanchard, 1851 accepted as Phyllophaga Harris, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichestes Erichson, 1848 accepted as Lachnosterna Hope, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Trichesthes
     Trichesthes Erichson, 1847 accepted as Trichesthes Erichson, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Trichesthes Blanchard, 1851 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Trichetra
     Trichetra White in Grey, 1841 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Eupterotidae (Family)
 Trichetra Pagenstecher, 1909 accepted as Enope Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)
     Trichetra Westwood, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Trichexocentroides
     Trichexocentroides Breuning, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichexocentroides Breuning, 1979 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichexocentrus
     Trichexocentrus Breuning, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichexocentrus Breuning, 1978 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichia
     Trichia De Haan, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family)
     Trichia Nietner, 1861 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trichia Reuter, 1875 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Trichia Hartmann, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hygromiidae (Family)
     Trichia Hoffmann, 1790 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Trichia Hong, 1981 † accepted as Iyaiyai Evenhuis, 1994 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chaoboridae (Family)
     Trichia Haller, 1768 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Trichiales (Order) > Trichiaceae (Family)

Trichidion
 Trichidion Klein, 1776 accepted as Polynemus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Polynemidae (Family)
 Trichidion Gill (ex Klein), 1861 accepted as Polydactylus Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Polynemidae (Family)
 Trichidion Walbaum, 1792 accepted as Polynemus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Polynemidae (Family)

Trichidium
     Trichidium J.M. Noble & G.T. Kraft, 1984 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)
 Trichidium Rafinesque, 1815 accepted as Trichia Haller, 1768 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Trichiales (Order) > Trichiaceae (Family)

Trichina
     Trichina Meigen, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hybotidae (Family)
 Trichina Owen, 1835 accepted as Trichinella Railliet, 1895 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichinellidae (Family)

Trichinus
 Trichinus Kirby, 1827 accepted as Trichius Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichinus McLeay in Smith, 1838 accepted as Trichius Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichinus Bischoff, 1840 accepted as Trichinella Railliet, 1895 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichinellidae (Family)

Trichiosoma
     Trichiosoma Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cimbicidae (Family)
 Trichiosoma Lucas, 1849 accepted as Ocnogyna Lederer, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Trichis
     Trichis Klug in Ehrenberg, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trichis Plumier in Lacepède, 1803 accepted as Alosa Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Clupeidae (Family)

Trichites
     Trichites Deshayes, 1832 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pinnidae (Family)
 Trichites Heine, 1860 accepted as Calyptocichla Oberholser, 1905 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pycnonotidae (Family)

Trichiuris
 Trichiuris Herbst in Borowski, 1787 accepted as Trichuris Röderer, 1761 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichuridae (Family)
 Trichiuris accepted as Trichiurus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trichiuridae (Family)

Trichloris
 Trichloris Scherffel & Pascher in Pascher, 1927 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Pyramimonadophyceae (Class) > Pyramimonadales (Order) > Pyramimonadaceae (Family)
     Trichloris E. Fournier ex Bentham, 1881 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trichobasis
     Trichobasis Reuter, 1904 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Trichobasis Léveillé in A.C.V.D. d'Orbigny, 1849 accepted as Uredo Persoon, 1801 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Trichobasis Turczaninow, 1852 accepted as Conothamnus J. Lindley, 1839 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Trichobius
     Trichobius Canestrini, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Myocoptidae (Family)
     Trichobius Gervais, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hippoboscidae (Family)

Trichocalyx
     Trichocalyx I.B. Balfour, 1884 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Trichocalyx Schauer, 1841 accepted as Calytrix Labillardière, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Trichocanthus
     Trichocanthus Motschoulsky, 1853, nom. nud. accepted as Thinopinus Leconte, 1852 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Trichocanthus Motschoulsky in Mannerheim, 1853 accepted as Thinopinus Leconte, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Trichocarpus
     Trichocarpus Schreber, 1789 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Trichocarpus P.A. Karsten, 1889 accepted as Amylostereum J. Boidin, 1958 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Russulales (Order) > Amylostereaceae (Family)

Trichocephaloides
     Trichocephaloides Sinitzin, 1896 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Dilepididae (Family)
 Trichocephaloides Braun, 1896 accepted as Trichocephaloidis Sinizin, 1896 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Dilepididae (Family)

Trichocephalus
     Trichocephalus A.T. Brongniart, 1826 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rhamnaceae (Family)
 Trichocephalus Schrank, 1788 accepted as Trichuris Röderer, 1761 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichuridae (Family)
 Trichocephalus Delle Chiaje, 1827 accepted as Argonauta Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Octopoda (Order) > Argonautidae (Family)
 Trichocephalus Fuhrmann, 1908 accepted as Trichocephaloidis Sinizin, 1896 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Dilepididae (Family)

Trichocera
     Trichocera Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Trichoceridae (Family)
     Trichocera De Haan in Siebold, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Cancridae (Family)
 Trichocera accepted as Trichocerca Lamarck, 1801 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Trichocercidae (Family)

Trichoceras
 Trichoceras Kützing, 1849 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Ceramiaceae (Family)
     Trichoceras Ratzeburg, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)

Trichocercus
     Trichocercus Insom & Carfi, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Myrmeleontidae (Family)
 Trichocercus Cuvier, 1800 accepted as Trichocerca Lamarck, 1801 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Trichocercidae (Family)

Trichoceros
     Trichoceros Kunth in Humboldt, Bonpland & Kunth, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Trichoceros Böhm, 1931 (uncertain)· Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Ceratiaceae (Family)

Trichocerus
     Trichocerus Costa, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Trichocerus Ratzeburg, 1848 accepted as Trichocerus Ratzeburg, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
     Trichocerus Müller, 1817 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Latridiidae (Family)

Trichochaeta
     Trichochaeta Steudel, 1855 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Trichochaeta Beddard, 1893 accepted as Hesperoscolex Michaelsen, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Glossoscolecidae (Family)
     Trichochaeta Bigot, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Trichocharis
     Trichocharis Delucchi, 1954 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eulophidae (Family)
 Trichocharis Simon, 1895 accepted as Caerostris Thorell, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Araneidae (Family)

Trichochilus
     Trichochilus Sæther, 1985 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
 Trichochilus O. Ames, 1932 accepted as Dipodium R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trichochlamys
     Trichochlamys Czerny, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Heleomyzidae (Family)
     Trichochlamys Hulst, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Trichochloa
     Trichochloa Palisot de Beauvois, 1812 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Trichochloa A.P. de Candolle, 1813 accepted as Muhlenbergia Schreber, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trichocladia
 Trichocladia J. Stirton, 1882 accepted as Heterodea Nylander, 1868 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Cladoniaceae (Family)
 Trichocladia (de Bary) Neger, 1901 accepted as Erysiphe R. Hedwig ex A.P. de Candolle, 1805 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Erysiphales (Order) > Erysiphaceae (Family)
 Trichocladia Harvey, 1836 accepted as Mesogloia C.A. Agardh, 1817 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Ectocarpales (Order) > Chordariaceae (Family)

Trichocnemis
 Trichocnemis Leconte, 1852 accepted as Ergates Audinet-Serville, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trichocnemis Selys, 1863 accepted as Coeliccia Kirby, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Platycnemididae (Family)

Trichocnemus
     Trichocnemus Stål, 1873 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Trichocnemus Jekel, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trichococcus
     Trichococcus Scheff, Salcher & Lingens, 1984 · Bacteria (Kingdom) > Firmicutes (Phylum) > Bacilli (Class) > Lactobacillales (Order) > Carnobacteriaceae (Family)
 Trichococcus Borkhsenius, 1948 accepted as Neotrichococcus Miller & Gimpel, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)

Trichocoma
 Trichocoma Stål, 1871 accepted as Perisphaeria Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)
     Trichocoma Junghuhn, 1838 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Aspergillaceae (Family)

Trichocoryne
     Trichocoryne S.F. Blake, 1924 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Trichocoryne Gray in Griffith & Pidgeon, 1831 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Trichocyclus
 Trichocyclus N.E. Brown, 1922 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
 Trichocyclus Eschscholtz, 1825 accepted as Clione Pallas, 1774 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gymnosomata (Order) > Clionidae (Family)
 Trichocyclus Günther, 1870 accepted as Diodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Diodontidae (Family)
 Trichocyclus Dulac, 1867 accepted as Woodsia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Woodsiaceae (Family)
     Trichocyclus Simon, 1908 accepted as Pholcitrichocyclus Ceccolini & Cianferoni, 2022 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pholcidae (Family)

Trichocystis
     Trichocystis F.T. Kützing, 1849 (uncertain)· Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)
     Trichocystis G.I. McFadden in McFadden, Hill & Wetherbee, 1986 · Plantae (Kingdom) > Chlorophyta (Phylum) > Pyramimonadophyceae (Class) > Pyramimonadales (Order) > Pyramimonadaceae (Family)

Trichoda
     Trichoda Hübner, 1822 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trichoda Müller, 1773 accepted as Trichoda Müller, 1773 (nomen dubium)· Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)

Trichodactylus
     Trichodactylus Latreille, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trichodactylidae (Family)
 Trichodactylus Giebel, 1877 accepted as Trichodactylus Giebel, 1877 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Trichodactylus Dufour, 1839 accepted as Trichodactylus Dufour, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Chaetodactylidae (Family)

Trichoderes
     Trichoderes Chevrolat, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichoderes Dejean, 1836 accepted as Trichoderes Chevrolat, 1843 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichoderma
     Trichoderma Fleming, 1822 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Trichoderma Persoon ex Gray, 1801 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Hypocreaceae (Family)
     Trichoderma Persoon, 1794 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Hypocreaceae (Family)
 Trichoderma Swainson, 1839 accepted as Amanses Gray, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Monacanthidae (Family)
 Trichoderma Greeff, 1869 accepted as Greeffiella Cobb, 1922 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Desmoscolecida (Order) > Desmoscolecidae (Family)
 Trichoderma Stephens, 1835 accepted as Ontholestes Ganglbauer, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Trichoderma Nonfried, 1894 accepted as Deuterocaulobius Dalla Torre in Schenkling, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichoderma E.M. Fries, 1829 accepted as · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Trichodes
     Trichodes Herbst in Jablonsky, 1792 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
     Trichodes P.F. Reinsch, 1881 † (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Trichodes Ehrenberg, 1832 accepted as Trichodes Ehrenberg, 1832 · Chromista (Kingdom) > Ochrophyta (Phylum) > Raphidophyceae (Class) > Actinophryida (Order) > Actinophryidae (Family)
 Trichodes Linstow, 1874 accepted as Trichosomoides Railliet, 1895 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichosomoididae (Family)

Trichodesma
     Trichodesma Leconte, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
     Trichodesma R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
     Trichodesma Hampson, 1898 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Trichodesmium
 Trichodesmium F.F. Chevallier, 1826 accepted as Graphiola Poiteau, 1824 · Fungi (Kingdom) > Basidiomycota (Phylum) > Exobasidiomycetes (Class) > Exobasidiales (Order) > Graphiolaceae (Family)
     Trichodesmium Ehrenberg ex Gomont, 1892 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Microcoleaceae (Family)

Trichodia
     Trichodia Stephens, 1827 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trichodia W. Griffith, 1854 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Trichodiadema
     Trichodiadema Schwantes, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
 Trichodiadema Boelsche, 1865 accepted as Thrichodiadema A. Agassiz, 1863 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Diadematoida (Order) > Diadematidae (Family)

Trichodina
     Trichodina Ancey, 1888 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Subulinidae (Family)
     Trichodina Ehrenberg, 1830 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Peritrichida (Order) > Trichodinidae (Family)

Trichodinella
     Trichodinella Srámek-Husek, 1953 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Peritrichida (Order) > Trichodinidae (Family)
 Trichodinella Lom, 1963 accepted as Trichodinella Srámek-Husek, 1953 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Peritrichida (Order) > Trichodinidae (Family)

Trichodiscus
     Trichodiscus Welsford, 1912 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chaetophorales (Order) > Chaetophoraceae (Family)
     Trichodiscus Strebel & Pfeffer, 1880 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Xanthonychidae (Family)
     Trichodiscus Ehrenberg, 1830 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Trichodiscus W. Kirschstein, 1924 accepted as Dennisiodiscus M. Svrček, 1976 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)

Trichodon
     Trichodon Cuvier & Valenciennes, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trichodontidae (Family)
     Trichodon W.P. Schimper, 1856 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Ditrichaceae (Family)
     Trichodon Fromentel, 1874 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Trichodon Tilesius, 1813 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trichodontidae (Family)
 Trichodon G. Bentham, 1881 accepted as Phragmites Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trichogaster
     Trichogaster Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Osphronemidae (Family)
     Trichogaster Handschin, 1932 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > (Order) > Collembola (awaiting allocation) (Family)
 Trichogaster Sterki, 1878 accepted as Prooxytricha Poche, 1913 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Hypotrichida incertae sedis (Family)
 Trichogaster Lioy, 1864 accepted as Limosina Macquart, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)

Trichogena
 Trichogena Brauer & Bergenstamm, 1889 accepted as Tricogena Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhinophoridae (Family)
     Trichogena Bezzi & Stein, 1907 accepted as Tricogena Rondani, 1856 (unjustified emendation)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Trichoglossa
 Trichoglossa Milne-Edwards, 1866 accepted as Trichoglossa Milne-Edwards, 1866 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Trichoglossa Pace, 1985 accepted as Trichoglossina Pace, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Trichognatha
     Trichognatha Gallon, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theraphosidae (Family)
     Trichognatha Latreille, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Trichognathus
     Trichognathus Amsel, 1956 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Trichognathus Gemminger & Harold, 1868 accepted as Trichognathus Gemminger & Harold, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Trichognathus Latrielle, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trichognathus Branson & Mehl, 1933 † accepted as Plectodina Stauffer, 1935 † · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Prioniodontida (Order) > Plectodinidae (Family)

Trichogonia
     Trichogonia Breddin, 1901 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Trichogonia (A.P. de Candolle) G. Gardner, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Tricholepis
 Tricholepis Kindberg, 1899 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Isobryales (Order) > Cryphaeaceae (Family)
     Tricholepis Blanchard, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Tricholepis A.P. de Candolle, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Tricholepis Hampson, 1891 accepted as Chiretolpis Watson in Watson, Fletcher & Nye, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Tricholestes
     Tricholestes Salvadori, 1874 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pycnonotidae (Family)
     Tricholestes Fraser, 1951 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Tricholoma
     Tricholoma (E.M. Fries) Staude, 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Tricholomataceae (Family)
 Tricholoma Bentham in Alph. de Candolle, 1846 accepted as Tricholoma Bentham in Alph. de Candolle, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Tricholoma Hlisnikovský, 1964 accepted as Ragytodes Jeannel, 1936 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)

Tricholygus
 Tricholygus Poppius in Sjöstedt, 1910 accepted as Creontiades Distant, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Tricholygus Josifov, 1992 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Trichoma
     Trichoma Tillyard, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Berothidae (Family)
 Trichoma Davis, 1897 accepted as Trichomma Wesmael, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Trichomalus
     Trichomalus Thomson, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Trichomalus accepted as Trichomallus Lacordaire, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichomanes
     Trichomanes Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Hymenophyllales (Order) > Hymenophyllaceae (Family)
 Trichomanes J. Hill, 1757 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)

Trichomastix
     Trichomastix Snellen van Vollenhoven, 1878 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trichomastix F. Blochmann, 1884 accepted as Trichomastix F. Blochmann, 1884 (nomen dubium)· Protozoa (Kingdom) > Metamonada (Phylum) > Trichomonadea (Class) > Trichomonadida (Order) > Monocercomonadidae (Family)

Trichometra
     Trichometra A.H. Clark, 1908 · Animalia (Kingdom) > Echinodermata (Phylum) > Crinoidea (Class) > Comatulida (Order) > Antedonidae (Family)
     Trichometra Hungerford, 1939 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hydrometridae (Family)

Trichomimastra
     Trichomimastra Weise, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Trichomimastra Laboissière, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Trichomonas
 Trichomonas Dujardin, 1841 accepted as Trichomonas Dujardin, 1841 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Trichomonas A. Donné, 1836 · Protozoa (Kingdom) > Metamonada (Phylum) > Trichomonadea (Class) > Trichomonadida (Order) > Trichomonadidae (Family)
     Trichomonas Donné · Protozoa (Kingdom) > Protozoa incertae sedis (Phylum) > (Class) > (Order) > (Family)

Trichomya
     Trichomya Ihering, 1900 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)
 Trichomya Crickmay, 1936 † accepted as Trichomyella Cox, 1969 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Pholadomyoida (awaiting allocation) (Family)

Trichonema
     Trichonema Rubtsov, 1978 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Mermithida (Order) > Tetradonematidae (Family)
 Trichonema Cobbold, 1874 accepted as Cyathostomum Molin, 1861 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Strongylidae (Family)
 Trichonema Ker-Gawler, 1802 accepted as Romulea Maratti, 1772 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Trichonema de Fromentel, 1876 accepted as Trichonemum Cavalier-Smith in Cavalier-Smith, Chao & Lewis, 2016 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Variosea (Class) > Phalansteriida (Order) > Trichonemidae (Family)

Trichoneura
     Trichoneura Berendt, 1845 accepted as Trichoneura Berendt, 1845 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)
     Trichoneura N.J. Andersson, 1855 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trichonia
     Trichonia Schutt, 1980 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)
     Trichonia Radoman, 1973 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Trichonotus
     Trichonotus Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trichonotidae (Family)
     Trichonotus Cameron, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Trichonotus Loew, 1857 accepted as Hippomachus Engel, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Trichonotus Mulsant, 1842 accepted as Aphodius Illiger in Kugelann, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichonotus Rafinesque, 1815 accepted as Elops Linnaeus, 1766 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Elopiformes (Order) > Elopidae (Family)
 Trichonotus Chevrolat, 1877 accepted as Cryptobathys Hartmann, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trichonyx
     Trichonyx Chaudoir, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Trichonyx Haupt in Schouteden, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Trichopalpus
     Trichopalpus Philippi, 1865 accepted as Trichopalpomyia Hunter, 1901 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Athericidae (Family)
     Trichopalpus Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Scathophagidae (Family)

Trichopelma
     Trichopelma Levander, 1900 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Trichopelma Simon, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theraphosidae (Family)

Trichopeltis
     Trichopeltis Pocock in Weter, 1895 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Cryptodesmidae (Family)
 Trichopeltis Spegazzini, 1889 accepted as Trichothyrium Spegazzini, 1889 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Microthyriales (Order) > Microthyriaceae (Family)

Trichopetalum
     Trichopetalum Harger, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Chordeumatida (Order) > Trichopetalidae (Family)
     Trichopetalum J. Lindley, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)

Trichophasia
     Trichophasia Townsend, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Trichophasia Swainson, 1839 accepted as Trachicephalus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Synanceiidae (Family)

Trichophila
     Trichophila Kimmins, 1952 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
 Trichophila Oudemans, 1889 accepted as Piedraia Fonseca & Leão, 1928 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Piedraiaceae (Family)

Trichophora
     Trichophora Macquart, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Trichophora Deshayes, 1830 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trichophora Bonnemaison, 1822 accepted as Oscillatoria Vaucher ex Gomont, 1892 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)

Trichophoropsis
     Trichophoropsis Bonaparte, 1854 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Trichophoropsis Townsend, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Trichophorus
     Trichophorus Temminck in Temminck & Laugier, 1821 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Pycnonotidae (Family)
 Trichophorus Mulsant & Godart, 1853 accepted as Mulsanteus Des Gozis, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
 Trichophorus Palisot de Beauvois, 1809 accepted as Oscillatoria Vaucher ex Gomont, 1892 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)
     Trichophorus Audinet-Serville, 1834 accepted as Ambonus Gistl, 1848 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichophyllum
 Trichophyllum J.F. Ehrhart ex H.D. House, 1920 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Trichophyllum Nuttall, 1818 accepted as Eriophyllum Lagasca, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trichophyton
     Trichophyton Malmsten, 1848 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Arthrodermataceae (Family)
 Trichophyton L.Z. Bian & X.P. Zhou, 1990 † accepted as Razumovskia A.G. Vologdin ex Krasnopeyeva, 1938 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)

Trichopleura
     Trichopleura Staudinger, 1882 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Trichopleura Kaup, 1858 accepted as Sthenopus Richardson, 1848 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Aploactinidae (Family)

Trichopleurus
 Trichopleurus Motschoulsky, 1860 accepted as Amphicoma Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Glaphyridae (Family)
 Trichopleurus Kuwert, 1898 accepted as Passalus Fabricius, 1792 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Passalidae (Family)

Trichopoda
     Trichopoda Latreille, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Trichopoda Lioy, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Trichopoda Brullé, 1835 accepted as Dactylosternum Wollaston, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hydrophilidae (Family)

Trichopodium
 Trichopodium K.B. Presl, 1845 accepted as Marina Liebmann, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Trichopodium Lindley, 1832 accepted as Trichopus J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)

Trichopodus
     Trichopodus Swainson, 1840 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trichopodus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Osphronemidae (Family)
     Trichopodus Mulsant & Rey, 1860 accepted as Trichosternum Wollaston, 1861 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trichoproctus
     Trichoproctus Silvestri, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polyxenida (Order) > Polyxenidae (Family)
 Trichoproctus Lambert & Thiéry, 1925 accepted as Trichoproctus Lambert & Thiéry, 1925 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)

Trichops
 Trichops Borre, 1886 accepted as Borrochrus Allsopp, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
 Trichops Rondani, 1866 accepted as Thricops Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Trichops Dejean, 1833 accepted as Trichops Val in de la Sagra, 1853 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
 Trichops Val in de la Sagra, 1853 accepted as Apalonychus Westwood, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Trichopselaphus
     Trichopselaphus Chaudoir, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trichopselaphus Jeannel, 1949 † accepted as Pselaphotrichus Besuchet, 1986 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Trichopsis
     Trichopsis Canestrini, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Osphronemidae (Family)
     Trichopsis Y. Ito, 1981 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)
     Trichopsis Hort., 1970 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trichopsocus
     Trichopsocus Kolbe, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Trichopsocidae (Family)
     Trichopsocus Hong, 1983 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)

Trichopsylla
     Trichopsylla Thomson, 1877 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Triozidae (Family)
 Trichopsylla Kolenati, 1863 accepted as Trichopsylla Kolenati, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Siphonaptera (awaiting allocation) (Family)

Trichoptera
     Trichoptera Strobl, 1880 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
 Trichoptera Lioy, 1864 accepted as Calopterella Coquillett, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diastatidae (Family)
     Trichoptera Kirby, 1813 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > (Family)
     Trichoptera Meigen, 1803 accepted as Psychoda Latreille, 1796 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)

Trichopteris
 Trichopteris Hall in Frémont, 1845 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)
     Trichopteris F.T. Kützing, 1847 accepted as Trichopteris F.T. Kützing, 1847 (nomen dubium)· Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Tilopteridales (Order) > Tilopteridaceae (Family)
     Trichopteris K.P.J. Sprengel accepted as Trichipteris K.B. Presl in J.S. Presl & K.B. Presl, 1822 (misspelling)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Cyatheaceae (Family)

Trichopterus
 Trichopterus Cuvier, 1829 accepted as Osphronemus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Osphronemidae (Family)
 Trichopterus Agassiz, 1845 accepted as Caranx Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)
 Trichopterus Gronow in Gray, 1854 accepted as Cheilodactylus Lacepède, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Cheilodactylidae (Family)

Trichopteryx
     Trichopteryx C.G.D. Nees, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Trichopteryx Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Trichopteryx Gistl, 1834 accepted as Ptilium Gyllenhal, 1827 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)
 Trichopteryx Kirby, 1826 accepted as Acrotrichis Motschoulsky, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)

Trichoptilium
     Trichoptilium A. Gray in Torrey, 1859 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Trichoptilium Kölliker, 1880 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Trichoptilium Flach, 1889 accepted as Ptiliolum Flach, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)

Trichopus
     Trichopus J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)
 Trichopus Haan in Siebold, 1835 accepted as Varuna H. Milne Edwards in Audouin, Bourdon, Brongniart, Cambassèdes, De Candolle, Delafosse, Deshayes, Deslonchamps, Drapiez, Dumas, Edwards, H. Milne Edwards, Fée, E. Geoffroy Saint-Hilaire, I. Geoffroy Saint-Hilaire, Guérin, Guillemin, De Jussieu, Kunth, L · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Grapsidae (Family)
 Trichopus Shaw, 1803 accepted as Osphronemus Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Osphronemidae (Family)
 Trichopus Claparède & Lachmann, 1859 accepted as Trichopodiella Corliss, 1960 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Hartmannulidae (Family)
 Trichopus C.M. [Robert Templeton], 1834 accepted as Tegenaria Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Agelenidae (Family)

Trichorhiza
     Trichorhiza Hampson, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Trichorhiza Russell, 1906 accepted as Euphysa Forbes, 1848 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Corymorphidae (Family)

Trichorhynchus
     Trichorhynchus Schneider, 1882 · Chromista (Kingdom) > Miozoa (Phylum) > (Class) > Eugregarinida (Order) > Trichorhynchidae (Family)
     Trichorhynchus Theobald, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Trichorhynchus Balbiani, 1887 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Trichormus
     Trichormus (Ralfs ex Bornet & Flahault) Komárek & Anagnostidis, 1989 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)
 Trichormus Allmann, 1843 accepted as Anabaena Bory de Saint-Vincent ex Bornet & Flahault, 1886 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)

Trichorrhinus
 Trichorrhinus Pesarini, 1969 † accepted as Phyllobius Schönherr in Germar, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trichorrhinus Schenkling & Marshall, 1929 accepted as Depresseremiarhinus Pic, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trichoscelis
     Trichoscelis Amyot & Serville, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Trichoscelis Czerny in Lindner, 1927 accepted as Trixoscelis Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Heleomyzidae (Family)
 Trichoscelis Bates, 1885 accepted as Tragidion Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichoscelis Thomson, 1864 accepted as Tragidion Audinet-Serville, 1834 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichoscelis Dejean, 1835 accepted as Trichoscelis Thomson, 1864 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trichoscypha
     Trichoscypha J.D. Hooker in Bentham & J.D. Hooker, 1862 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
 Trichoscypha (M.C. Cooke) P.A. Saccardo, 1889 accepted as Cookeina O. Kuntze, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Sarcoscyphaceae (Family)
 Trichoscypha Boudier, 1885 accepted as Lachnellula P.A. Karsten, 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Hyaloscyphaceae (Family)

Trichosia
     Trichosia Winnertz, 1867 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sciaridae (Family)
 Trichosia A.C. Batista & R. Garnier, 1960 accepted as Trichasterina G. Arnaud, 1918 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Asterinales (Order) > Asterinaceae (Family)
 Trichosia C.L. von Blume, 1825 accepted as Eria J. Lindley, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trichosiphum
     Trichosiphum Pergande, 1906 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Trichosiphum H.W. Schott & Endlicher, 1832 accepted as Brachychiton H.W. Schott & Endlicher, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Trichosoma
 Trichosoma Swainson, 1839 accepted as Apistus Cuvier in Cuvier & Valenciennes, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Apistidae (Family)
 Trichosoma Rudolphi, 1819 accepted as Capillaria Zeder, 1800 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Capillariidae (Family)
 Trichosoma Swainson, 1838 accepted as Thryssa Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Clupeiformes (Order) > Engraulidae (Family)
 Trichosoma Rambur in Boisduval, 1833 accepted as Ocnogyna Lederer, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Trichosomus
     Trichosomus Gemminger & Harold, 1871 accepted as Desmidophorus Dejean, 1835 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Trichosomus Swainson, 1839 accepted as Apistus Cuvier in Cuvier & Valenciennes, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Apistidae (Family)
 Trichosomus Chevrolat, 1881 accepted as Desmidophorus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Trichospira
 Trichospira E.M. McNeill, 1948 accepted as · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Oscillatoriales (Order) > Oscillatoriaceae (Family)
     Trichospira Kunth in Humboldt, Bonpland & Kunth, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Trichospira Roux, 1899 · Chromista (Kingdom) > Ciliophora (Phylum) > Litostomatea (Class) > Trichostomatida (Order) > Trichospiridae (Family)

Trichosporum
 Trichosporum D. Don, 1822 accepted as Aeschynanthus Jack, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Trichosporum P. Vuillemin, 1901 accepted as Piedraia Fonseca & Leão, 1928 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Piedraiaceae (Family)
 Trichosporum E.M. Fries, 1825 accepted as · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Trichostachys
 Trichostachys Welwitsch, 1862 accepted as Trichostachys Welwitsch, 1862 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Trichostachys J.D. Hooker in Bentham & J.D. Hooker, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Trichostegia
     Trichostegia Kolenati, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Phryganeidae (Family)
     Trichostegia Turczaninow, 1851 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trichostemma
 Trichostemma Cassini in F. Cuvier, 1827 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Trichostemma Sars, 1869 accepted as Radiella Schmidt, 1870 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Polymastiidae (Family)

Trichosterigma
 Trichosterigma Klotzsch & Garcke in Klotzsch, 1859 accepted as Euphorbia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Trichosterigma Petch, 1923 accepted as Hirsutella Patouillard, 1892 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Cordycipitaceae (Family)

Trichosternum
 Trichosternum Draudt, 1950 accepted as Zutragum Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Trichosternum Wollaston, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trichosternus
     Trichosternus Chaudoir, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Trichosternus Mulsant & Rey, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Trichostigma
 Trichostigma Gerber, 1902 accepted as Aceria Keifer, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)
     Trichostigma A. Richard in Sagra, 1845 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Petiveriaceae (Family)

Trichostola
     Trichostola Chapuis in Lacordaire, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Trichostola Chevrolat in Dejean, 1836 accepted as Trichostola Chapuis in Lacordaire, 1874 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Trichostoma
     Trichostoma Stephens, 1829 accepted as Trichostoma Stephens, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trichostoma Pictet, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
 Trichostoma Dalla Torre, 1896 accepted as Trichostoma Dalla Torre, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Halictidae (Family)
 Trichostoma Westwood, 1851 accepted as Capillaria Zeder, 1800 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Capillariidae (Family)
 Trichostoma Strickland in Jardine, 1849 accepted as Trichastoma Blyth, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)

Trichostomum
     Trichostomum Bruch in F.A. Müller, 1829 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
 Trichostomum Burmeister, 1839 accepted as Trichostomum Burmeister, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Trichoptera (awaiting allocation) (Family)
 Trichostomum J. Hedwig, 1801 accepted as Trichostomum J. Hedwig, 1801 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Grimmiales (Order) > Grimmiales (awaiting allocation) (Family)

Trichostroma
     Trichostroma Link, 1826 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Trichostroma A.G. Vologdin, 1962 † accepted as · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Trichostromataceae (Family)
     Trichostroma Corda in J. Sturm, 1829 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Trichosurus
     Trichosurus Rafinesque, 1815 accepted as Trichosurus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Trichosurus Lesson, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Phalangeridae (Family)

Trichota
     Trichota Méhelÿ, 1935 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trichota Rambur, 1866 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Trichotaenia
     Trichotaenia Yamazaki, 1953 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Trichotaenia Rivalier, 1958 accepted as Cicindela Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cicindelidae (Family)

Trichotarsus
 Trichotarsus Kraatz, 1897 accepted as Neoscelis Schoch, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichotarsus Motschulsky, 1864 accepted as Orthotrichus Peyron, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trichotarsus Jedlicka, 1962 accepted as Laemostenus Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trichotarsus Canestrini, 1888 accepted as Chaetodactylus Rondani, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Chaetodactylidae (Family)

Trichotaxis
     Trichotaxis Kahl, 1932 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Hypotrichida (Order) > Holostichidae (Family)
 Trichotaxis Stokes, 1891 accepted as Trichototaxis Stokes, 1891 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Urostylida (Order) > Pseudourostylidae (Family)

Trichotendipes
     Trichotendipes Guha, Das, Chaudhuri & Choudhuri, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
 Trichotendipes Heyn, 1993 accepted as Glyptotendipes Kieffer, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)

Trichotheca
     Trichotheca Baly, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Trichotheca P.A. Karsten, 1887 accepted as Bloxamia M.J. Berkeley & C.E. Broome, 1854 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiaceae (Family)

Trichothorax
     Trichothorax Richards, 1978 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
 Trichothorax Montrouzier, 1860 accepted as Pentagonica Schmidt-Goebel, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Trichothyrea
     Trichothyrea Kolbe, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trichothyrea Schoch, 1896 accepted as Trichocelis Moser, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Trichothyris
     Trichothyris Buckman, 1918 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)
     Trichothyris Buckman, 1915 † accepted as Trichothyris Buckman, 1918 (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)

Trichotoxon
     Trichotoxon F.M.H. Reid & F.E. Round, 1988 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Bacillariophyceae (Class) > Thalassionematales (Order) > Thalassionemataceae (Family)
     Trichotoxon Simroth, 1888 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocyclidae (Family)

Trichozonium
 Trichozonium Miyosi, 1953 accepted as Symphyopleurium Attems, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Platydesmida (Order) > Andrognathidae (Family)
 Trichozonium Verhoeff, 1935 accepted as Symphyopleurium Attems, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Platydesmida (Order) > Andrognathidae (Family)

Trichroa
     Trichroa Reichenbach, 1862 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Trichroa Fairmaire, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichroa Wagner, 1905 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trichromia
 Trichromia Fairmaire, 1892 accepted as Trichroa Fairmaire, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trichromia Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Trichurus
     Trichurus F.E. Clements, 1896 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Microascales (Order) > Microascaceae (Family)
 Trichurus C.C. Townsend, 1974 accepted as Trichuriella S.S.R. Bennet, 1985 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
 Trichurus Donndorff, 1798 accepted as Trichiurus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trichiuridae (Family)
 Trichurus Fagge & Pye-Smith, 1902 accepted as Trichuris Röderer, 1761 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichuridae (Family)
 Trichurus Wagner in Schreber, 1843 accepted as Trichosurus Lesson, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Phalangeridae (Family)

Trichyurus
     Trichyurus Costa, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Trichyurus accepted as Trichiurus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Trichiuridae (Family)

Tricla
     Tricla Oken, 1815 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tricla Philippson, 1788 accepted as Scaphander Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Scaphandridae (Family)

Tricladia
 Tricladia Decaisne, 1842 accepted as Caulerpa J.V.F. Lamouroux, 1809 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Caulerpaceae (Family)
 Tricladia Oberthür, 1894 accepted as Burlacena Walker, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Zygaenidae (Family)
     Tricladia Felder, 1874 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hepialidae (Family)
 Tricladia Mercet, 1918 accepted as Tricnemus Mercet, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Tricladus
     Tricladus Fairmaire, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)
 Tricladus Enderlein, 1906 accepted as Propsocus McLachlan, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Elipsocidae (Family)

Triclaria
     Triclaria Wagler, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)
 Triclaria Koch, 1847 accepted as Trechalea Thorell, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Trechaleidae (Family)

Tricliona
 Tricliona Bryant, 1950 accepted as Rhyparida Baly, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Tricliona Lefèvre, 1885 accepted as Bathseba Motschoulsky, 1866 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Triclis
     Triclis Loew, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
     Triclis de Vis, 1888 † accepted as Propleopus Longman, 1924 † (junior homonym)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Potoroidae (Family)

Tricoelodus
     Tricoelodus Ameghino, 1897, nom. nud. † accepted as Tricoelodus Ameghino, 1897 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Litopterna (Order) > Adianthidae (Family)
     Tricoelodus Ameghino, 1897 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Litopterna (Order) > Adianthidae (Family)

Tricogena
     Tricogena Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhinophoridae (Family)
     Tricogena Rondani, 1859 accepted as Thricogena Rondani, 1859 (incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Tricolietta
     Tricolietta Nordsieck, 1973 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Tricolietta Nordsieck, 1982 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Tricolpites
 Tricolpites T. van der Hammen, 1954 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Tricolpites I.C. Cookson ex R.A. Couper, 1953 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tricops
 Tricops Bezzi & Stein in Becker, 1907 accepted as Thricops Rondani, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Tricops Rondani, 1856 accepted as Thricops Rondani, 1856 (incorrect original spelling)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)

Tricornina
     Tricornina Boucek, 1936 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Tricorninidae (Family)
 Tricornina Snajdr, 1951 † accepted as Tricornina Boucek, 1936 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Tricorninidae (Family)

Tricranioides
 Tricranioides Lucas, 1920 accepted as Tricranioides Lucas, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Tricranioides Wellman, 1910 accepted as Tricrania Leconte, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Meloidae (Family)

Tricuspidaria
 Tricuspidaria Rudolphi, 1793 accepted as Triaenophorus Rudolphi, 1793 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Bothriocephalidea (Order) > Triaenophoridae (Family)
 Tricuspidaria Ruiz & Pavon, 1794 accepted as Crinodendron Molina, 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Elaeocarpaceae (Family)

Tricuspis
     Tricuspis Persoon, 1806 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Tricuspis Palisot de Beauvois, 1812 accepted as Tridens J.J. Roemer & J.A. Schultes, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Tricuspis Egorova, 1967 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Tricystis
     Tricystis Hamon, 1951 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Actinocephalidae (Family)
 Tricystis Polyanskii & Kheisin, 1965 accepted as Pachyporospora Théodoridès, 1961 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Porosporidae (Family)

Tridactylus
     Tridactylus Biron & Dutuit, 1982 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tridactylus accepted as Triodoclytus Casey, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Tridactylus Lacepède, 1799 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tridactylus Olivier, 1789 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tridactylidae (Family)
     Tridactylus Gardner, 1875 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Tridactylus Cuvier, 1829 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Tridens
     Tridens G. Massee, 1901 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismataceae (Family)
     Tridens Eigenmann & Eigenmann, 1889 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Trichomycteridae (Family)
     Tridens J.J. Roemer & J.A. Schultes, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Tridensiana
     Tridensiana Fagot, 1891 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Tridensiana Caziot, 1910 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Enidae (Family)

Tridentella
     Tridentella Richardson, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Tridentellidae (Family)
 Tridentella Filipjev, 1946 accepted as Tridentellia Gerlach & Riemann, 1973 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Comesomatidae (Family)

Tridentopsis
     Tridentopsis Myers, 1925 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Trichomycteridae (Family)
     Tridentopsis P.M. Peterson, 2014 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Tridentulus
     Tridentulus Eyualem & Coomans, 1995 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Monhysteridae (Family)
 Tridentulus Cope, 1892 accepted as Lerista Bell, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Tridesmis
 Tridesmis Spach, 1836 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
 Tridesmis Loureiro, 1790 accepted as Croton Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Tridia
     Tridia Korthals, 1836 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
 Tridia V.A. Schipitzyn in O.V. Sosnovskaja & V.A. Schipitzyn, 1984 † accepted as · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)

Tridictyopus
     Tridictyopus Hertwig, 1879 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Tridictyopus Haeckel, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Tridonta
     Tridonta Gray, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tridonta Schumacher, 1817 accepted as Astarte J. Sowerby, 1816 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Astartidae (Family)

Triebelocythere
     Triebelocythere Gruendel, 1967 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Triebelocythere Gruendel, 1966 † accepted as Triebelocythere Gruendel, 1966 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)

Trielis
     Trielis Saussure & Sichel, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trielis Saussure, 1863 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Trieres
     Trieres M.P. Ashworth & E.C. Theriot in Ashworth, Nakov & Theriot, 2013 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Triceratiales (Order) > Triceratiaceae (Family)
     Trieres Candèze, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Trifolium
     Trifolium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Trifolium Travassos, 1922 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Trifurcula
     Trifurcula Zeller, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nepticulidae (Family)
     Trifurcula Staudinger, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Triga
     Triga Gray, 1867 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Triga Fauvel, 1878 accepted as Charhyphus Sharp, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Trigastrotheca
     Trigastrotheca F. von Mueller, 1857 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Trigastrotheca Cameron, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Trigella
 Trigella R.A. Salisbury, 1866 accepted as Cyanella Linnaeus, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Tecophilaeaceae (Family)
 Trigella Rafinesque, 1815 † accepted as Trigonia Bruguière, 1789 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Trigoniidae (Family)

Triglyphus
     Triglyphus Loew, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Triglyphus Fraas, 1866 † accepted as Tritylodon Owen, 1884 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Tritylodontidae (Family)
 Triglyphus Leconte, 1876 accepted as Triglyphulus Cockerell, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trigodon
     Trigodon Ameghino, 1882 † accepted as Eutrigonodon Ameghino, 1891 † (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)
 Trigodon Ameghino, 1887 † accepted as Eutrigonodon Ameghino, 1891 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)

Trigon
     Trigon Rüppell, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)
 Trigon König, 1825 † accepted as Trigonia Bruguière, 1789 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Trigoniidae (Family)

Trigona
     Trigona Jurine, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Trigona Sakagami & Moure in Sakagami, 1975 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Trigona Megerle von Mühlfeld, 1811 accepted as Gomphina Mörch, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Trigona Perry, 1811 accepted as Trigonostoma Blainville, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)

Trigonarthris
     Trigonarthris Haldeman, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trigonarthris Dejean, 1836 accepted as Trigonarthris Haldeman, 1848 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trigonaspis
     Trigonaspis H.A. Thomsen, 1980 · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Coccolithophyceae incertae sedis (Order) > Papposphaeraceae (Family)
     Trigonaspis Hartig in Germar, 1840 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trigonaspis Sandberger, 1849 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Trigonaspis Yang in Yang et al., 1991 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Trilobitomorpha (awaiting allocation) (Order) > Trilobitomorpha (awaiting allocation) (Family)
 Trigonaspis Ferris, 1941 accepted as Vinculaspis Ferris, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Trigonaspis Spaeth, 1924 accepted as Trigonocassis Hincks, 1950 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Trigonaspis Koroleva, 1961 † accepted as Trigonoaspis Koroleva, 1961 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)

Trigonella
     Trigonella Quenstedt, 1868 (uncertain)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Trigonella Sakagami, 1975 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
     Trigonella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Trigonella Conrad, 1837 accepted as Tivela Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Trigonella da Costa, 1778 accepted as Mactra Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactridae (Family)
 Trigonella Rozkowska, 1979 † accepted as Rozkowskaella Wrzolek, 1987 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
 Trigonella Hehl, 1842 † accepted as Myophoria Bronn in Alberti, 1834 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Myophoriidae (Family)

Trigonellina
     Trigonellina Buckman, 1907 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Dallinidae (Family)
     Trigonellina Parnes, 1981 † accepted as Parnesellina Echevarria, Ros Franch & Mancenido, 2018 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Myophorellidae (Family)

Trigonellites
 Trigonellites Parkinson, 1811 † accepted as Aptychus von Meyer, 1831 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Aptychi (awaiting allocation) (Family)
 Trigonellites Schlotheim, 1820 † accepted as Myophoria Bronn in Alberti, 1834 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Myophoriidae (Family)

Trigonia
     Trigonia Bruguière, 1789 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Trigoniidae (Family)
     Trigonia Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Trigoniaceae (Family)
     Trigonia Guenée, 1854 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Trigonia F. van Beyma, 1933 accepted as Triangularia Boedijn, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariales (Order) > Lasiosphaeriaceae (Family)
 Trigonia Geyer in Hübner, 1837 accepted as Appias Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pieridae (Family)

Trigonidium
     Trigonidium Audinet-Serville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Trigonidiidae (Family)
     Trigonidium J. Lindley, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Trigonidium Pascher, 1932 accepted as Trigonidiella P.C. Silva, 1970 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)

Trigonirhynchia
     Trigonirhynchia Cooper, 1942 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Trigonirhynchiidae (Family)
 Trigonirhynchia Dagys, 1961 † accepted as Trigonirhynchella Dagys, 1963 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Austrirhynchidae (Family)

Trigonocardia
     Trigonocardia Zittel, 1881 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trigonocardia Cossmann, 1901 accepted as Trigoniocardia Dall, 1900 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Cardiidae (Family)

Trigonocarpus
     Trigonocarpus Ubaghs, 1994 † · Animalia (Kingdom) > Echinodermata (Phylum) > Stylophora (Class) > Stylophora (awaiting allocation) (Order) > Stylophora incertae sedis (Family)
 Trigonocarpus Vellozo, 1829 accepted as Cupania Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Trigonocarpus Brongniart, 1828 † accepted as Trigonocarpus Brongniart, 1828 † (nomen nudum)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pachytestales (Order) > Pachytestaceae (Family)

Trigonocephalus
     Trigonocephalus Oppel, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Trigonocephalus Schiacchitano, 1931 accepted as Trigonepimerus Schiacchitano, 1932 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Monocystidae (Family)
 Trigonocephalus Okada, 1961 accepted as Tridentiger Gill, 1859 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Trigonochilus
     Trigonochilus Brenske, 1896 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trigonochilus Agassiz, 1846 accepted as Trigonochilus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Gyrinidae (Family)

Trigonochlamys
     Trigonochlamys Böttger, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Trigonochlamydidae (Family)
 Trigonochlamys J.D. Hooker, 1860 accepted as Santiria Blume, 1850 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Burseraceae (Family)

Trigonocoelia
     Trigonocoelia Sassi, 1827 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Limopsidae (Family)
     Trigonocoelia Eichwald, 1850 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trigonocoelia Bronn, 1838 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trigonocoelia Nyst & Galeotti, 1835 accepted as Limopsis Sassi, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Limopsidae (Family)

Trigonocotyle
     Trigonocotyle Baer, 1932 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Tetrabothriidae (Family)
 Trigonocotyle Guiart, 1935 accepted as Tetrabothrius Rudolphi, 1819 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Tetrabothriidae (Family)

Trigonocranus
     Trigonocranus Fieber, 1872 accepted as Trigonocranus Fieber, 1872 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
     Trigonocranus Fieber, 1875 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Trigonocystis
     Trigonocystis Haeckel, 1897 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Trigonocystis Hassall, 1845 accepted as Trigonocystis Hassall, 1845 (nomen dubium)· Plantae (Kingdom) > Charophyta (Phylum) > Zygnematophyceae (Class) > Desmidiales (Order) > Desmidiaceae (Family)

Trigonodactyla
     Trigonodactyla Brandt, 1837 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Trigonodactyla Dejean, 1831 accepted as Hexagonia Kirby, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Trigonodera
     Trigonodera Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)
 Trigonodera Gerstaecker, 1855 accepted as Trigonodera Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)

Trigonoderus
     Trigonoderus Westwood, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Trigonoderus Chevrolat in Guérin-Méneville, 1844 accepted as Dumerilia Leach, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)
     Trigonoderus Westwood in Stephens, 1829 accepted as Trigonoderus Westwood, 1832 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Trigonoderus Gray, 1833 accepted as Tropidoderus Gray, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatidae (Family)

Trigonodon
     Trigonodon Conrad, 1865 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trigonodon Sismonda in Michelotti, 1847 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontiformes (awaiting allocation) (Family)
 Trigonodon Ameghino, 1891 † accepted as Eutrigonodon Ameghino, 1891 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Notoungulata (Order) > Toxodontidae (Family)

Trigonodus
     Trigonodus Alberti, 1864 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Pachycardiidae (Family)
     Trigonodus Winkler, 1876 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Trigonodus Newberry & Worthen, 1866 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Trigonodus Sandberger, 1864 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Trigonodidae (Family)

Trigonogaster
     Trigonogaster Guérin-Méneville, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Trigonogaster Forel, 1890 accepted as Recurvidris Bolton, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)

Trigonogenius
     Trigonogenius Solier in Gay, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Trigonogenius Wollaston, 1857 accepted as Sphaericus Wollaston, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Trigonogenius Hagedorn, 1912 accepted as Hagedornus Lucas, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trigonomima
 Trigonomima Motschulsky, 1864 accepted as Lesticus Dejean, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Trigonomima Enderlein, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Trigonopeplus
     Trigonopeplus White, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trigonopeplus Thomson, 1860 accepted as Trigonopeplus White, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trigonopeplus Dejean, 1835 accepted as Trigonopeplus White, 1855 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Trigonophorus
     Trigonophorus Hope, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Trigonophorus Stephens, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Trigonophorus Solier in Gay, 1849 accepted as Trigonogenium Harold, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Trigonophorus Nordmann, 1837 accepted as Trigonopselaphus Gemminger & Harold, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Trigonophylla
     Trigonophylla Turner, 1920 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
 Trigonophylla Turner, 1937 accepted as Macaretaera Meyrick, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Trigonopora
     Trigonopora Maplestone, 1902 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Adeonidae (Family)
     Trigonopora Morozova & Lisitsyn, 1996 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Fenestellidae (Family)

Trigonopsis
     Trigonopsis Perty, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)
     Trigonopsis J. Schachner, 1929 · Fungi (Kingdom) > Ascomycota (Phylum) > Saccharomycetes (Class) > Saccharomycetales (Order) > Trigonopsidaceae (Family)

Trigonopyxis
     Trigonopyxis Penard, 1912 accepted as Trigonopyxis Penard, 1912 (nomen dubium)· Protozoa (Kingdom) > Amoebozoa (Phylum) > Tubulinea (Class) > Arcellinida (Order) > Trigonopyxidae (Family)
 Trigonopyxis I.C. Cookson & A. Eisenack, 1960 † accepted as Trigonopyxidia I.C. Cookson & A. Eisenack, 1961 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Gonyaulacales (awaiting allocation) (Family)

Trigonoscelis
     Trigonoscelis Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Trigonoscelis Solier, 1836 accepted as Trigonoscelis Dejean, 1834 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trigonosoma
     Trigonosoma Gray, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Platystomatidae (Family)
     Trigonosoma Laporte, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Trigonosoma Dejean, 1835 accepted as Camptocheirus Lacordaire, 1863 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trigonostoma
     Trigonostoma Lioy, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Trigonostoma Blainville, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Cancellariidae (Family)
     Trigonostoma Fitzinger, 1833 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trigonostoma Gray, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trigonostoma Vest, 1867 accepted as Erjavecia Brusina, 1870 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Trigonostoma Szidat, 1966 accepted as Multicalyx Faust & Tang, 1936 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Aspidogastrida (Order) > Aspidogastridae (Family)
 Trigonostoma Dejean, 1833 accepted as Adoroleptus Brenske, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Trigonostomum
     Trigonostomum Burmeister, 1844 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Trigonostomum Schmidt, 1852 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Trigonostomidae (Family)

Trigonotarsus
     Trigonotarsus Guérin in Schönherr, 1838 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trigonotarsus Guerin-Meneville, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
     Trigonotarsus Hope, 1843 accepted as Sobas Pascoe, 1863 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Trigonulina
     Trigonulina d'Orbigny, 1853 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Verticordiidae (Family)
 Trigonulina Seguenza, 1862 † accepted as Galwayella Patterson & Pettis, 1986 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Ellipsolagenidae (Family)

Trigonurella
     Trigonurella Boucek, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chalcididae (Family)
     Trigonurella Maa, 1963 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Trigonurus
     Trigonurus Mulsant, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Trigonurus Duméril, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Trigonus
 Trigonus Fauvel, 1867 accepted as Trigonopterus Fauvel, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trigonus M. Banasová, J. Kopcáková & D. Rehaková, 2007 † accepted as Calciconus M. Streng, M. Banasová, D. Reháková & H. Willems, 2009 † · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Thoracosphaerales (Order) > Thoracosphaeraceae (Family)

Trigorima
     Trigorima Rafinesque, 1820 accepted as Trigorima Rafinesque, 1820 (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Trigorima Rafinesque, 1818 accepted as Trigorima Rafinesque, 1818 (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)

Triguera
 Triguera Cavanilles, 1785 accepted as Triguera Cavanilles, 1785 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Triguera Cavanilles, 1786 accepted as Solanum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Triletes
 Triletes T. van der Hammen, 1954 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Triletes P.F. Reinsch, 1881 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Triloba
     Triloba Vest, 1867 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Triloba Mudrezowa-Wyss, 1929 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Trilobatum
     Trilobatum Popofsky, 1912 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Actinommidae (Family)
     Trilobatum X. Fang, 1987 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Trilobella
     Trilobella Woodward, 1924 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Trilobella Ivanova, 1955 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda incertae sedis (Family)

Trilobus
     Trilobus Brünnich, 1781 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Trilobus Bastian, 1865 accepted as Tobrilus Andrássy, 1959 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripylida (Order) > Tobrilidae (Family)

Trilocularia
     Trilocularia Schlechter, 1906 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Balanopaceae (Family)
     Trilocularia Olsson, 1867 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Tetraphyllidea (Order) > Tetraphyllidea incertae sedis (Family)

Trimenia
     Trimenia Tite & Dickson, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
     Trimenia B.C. Seemann, 1873 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Austrobaileyales (Order) > Trimeniaceae (Family)

Trimerella
     Trimerella Billings, 1862 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Craniata (Class) > Trimerellida (Order) > Trimerellidae (Family)
 Trimerella Lindström, 1867 † accepted as Trimerella Billings, 1862 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Craniata (Class) > Trimerellida (Order) > Trimerellidae (Family)

Trimeria
     Trimeria Saussure, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
     Trimeria W.H. Harvey, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Trimerus
     Trimerus Green, 1832 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Homalonotidae (Family)
 Trimerus Chaudoir, 1878 accepted as Amorphomerus Sloane, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Trimerus Nalepa, 1892 accepted as Epitrimerus Nalepa, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Eriophyidae (Family)

Trimesurus
     Trimesurus Gray, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)
     Trimesurus Gray, 1840 accepted as Trimesurus Gray, 1840 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Viperidae (Family)

Trimitiella
     Trimitiella G.S. Dhingra, 2008 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)
 Trimitiella G.S. Dhingra, 2006 accepted as Trimitiella G.S. Dhingra, 2008 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)

Trimorus
     Trimorus Förster, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Trimorus Kriechbaumer, 1894 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Trinacria
     Trinacria Heiberg, 1863 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Hemiaulales (Order) > Hemiaulaceae (Family)
     Trinacria Böttger, 1877 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trinacria Casey, 1922 accepted as Coelonertus Solari, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trinacria Mayer, 1868 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Glycymerididae (Family)

Trinacriella
     Trinacriella Parona, 1933 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Trinacriella Del-Guercio, 1913 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Trinacriella Macneil, 1937 † accepted as Stenzelia Macneil, 1954 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcida (awaiting allocation) (Family)

Trinaria
     Trinaria Mulsant, 1852 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Trinaria Provancher, 1886 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Trinaria Mulsant, 1869 accepted as Simplocaria Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Byrrhidae (Family)

Trinella
     Trinella Gray, 1870 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Trinella Bory de St. Vincent, 1827 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Trinella Goodnight & Goodnight, 1947 accepted as Avima Roewer, 1949 (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Agoristenidae (Family)

Trinema
     Trinema Cook, 1997 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Turritellidae (Family)
     Trinema Dujardin, 1841 · Chromista (Kingdom) > Cercozoa (Phylum) > Imbricatea (Class) > Euglyphida (Order) > Trinematidae (Family)

Trinia
     Trinia G.F. Hoffmann, 1814 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Trinia Poletaeva, 1956 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Trinitoceras
     Trinitoceras Scott, 1939 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Endocerida (Order) > Endocerida (awaiting allocation) (Family)
     Trinitoceras Flower, 1976 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Trinodes
     Trinodes Latreille in Cuvier, 1829 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Limnichidae (Family)
     Trinodes Dejean, 1821 accepted as Trinodes Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Limnichidae (Family)
     Trinodes Sturm, 1826 accepted as Trinodes Sturm, 1826 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Limnichidae (Family)

Trinodus
     Trinodus M'Coy in Griffith, 1846 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Agnostida (Order) > Eodiscidae (Family)
     Trinodus Liu, 1987 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Branchiopoda (Class) > Branchiopoda (awaiting allocation) (Order) > Branchiopoda (awaiting allocation) (Family)

Trinucleus
     Trinucleus Murchison, 1839 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Trinucleidae (Family)
 Trinucleus Link, 1807 accepted as Trinucleus Link, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Xiphosura (Class) > (Order) > Xiphosura (awaiting allocation) (Family)

Triodia
     Triodia Hübner, 1820 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Triodia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Triodia A.M. Clark, 1970 † accepted as Triplodia Turner & Hallan, 2011 · Animalia (Kingdom) > Echinodermata (Phylum) > Ophiuroidea (Class) > Ophiurida (Order) > Amphiuridae (Family)

Triodites
     Triodites Osten-Sacken, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
 Triodites Gistl, 1848 accepted as Triodites Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Flatidae (Family)

Triodon
     Triodon Ameghino, 1875 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Triodon Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Triodontidae (Family)
 Triodon A.P. de Candolle, 1830 accepted as Diodia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Triodon Baumgarten, 1816 accepted as Triodia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Triodoncidium
     Triodoncidium J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Triodoncidium J.M.H. Shaw, 2004 accepted as Triodoncidium J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Triodonta
     Triodonta Williston, 1885 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
     Triodonta Koenen, 1893 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Triodonta Bory de St. Vincent, 1827 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Triodonta Mulsant, 1842 accepted as Triodontella Reitter, 1919 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Triodonta Agassiz, 1846 accepted as Tridonta Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Astartidae (Family)
 Triodonta Gray, 1851 accepted as Lucinoma Dall, 1901 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lucinidae (Family)

Triodontella
     Triodontella Reitter, 1919 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Triodontella Stach, 1949 accepted as Austrodontella Ellis & Bellinger, 1973 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Odontellidae (Family)

Triodontolaimus
     Triodontolaimus de Man, 1893 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripylida (Order) > Triodontolaimidae (Family)
 Triodontolaimus Micoletzky, 1913 accepted as Chromadora Bastian, 1865 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Chromadorida (Order) > Chromadoridae (Family)

Triodontus
 Triodontus Looss, 1900 accepted as Triodontophorus Looss, 1902 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Strongylidae (Family)
 Triodontus Westwood, 1843 accepted as Orphnus Macleay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Triolena
     Triolena Naudin, 1851 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
     Triolena Haeckel, 1887 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)

Trionum
 Trionum Schaeffer, 1760 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Trionum Linnaeus, 1758 accepted as Hibiscus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Trionus
 Trionus Denmark, 1992 accepted as Typhlodromus Scheuten, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)
 Trionus Sharp, 1885 accepted as Microprius Fairmaire, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)

Trionychus
     Trionychus Dejean, 1833 accepted as Trionychus Burmeister, 1847 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trionychus Burmeister, 1847 accepted as Rhizoplatys Westwood, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Trionyx
     Trionyx Haliday, 1833 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Trionyx Oken, 1816 accepted as Trionyx Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Trionyx Geoffroy, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Trionychidae (Family)

Triopsis
     Triopsis Signoret, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cixiidae (Family)
     Triopsis Rafinesque, 1815 accepted as Triopsis Rafinesque, 1815 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Triorbis
     Triorbis Hampson, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nolidae (Family)
     Triorbis O. Varol, 1984 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Coccolithophyceae (awaiting allocation) (Order) > Coccolithophyceae (awaiting allocation) (Family)

Triorches
 Triorches Blasius, 1862 accepted as Pandion Savigny, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)
 Triorches T. Forster, 1817 accepted as Pandion Savigny, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)
 Triorches Leach, 1816 accepted as Pandion Savigny, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)

Triorchis
 Triorchis Kaup, 1829 accepted as Pandion Savigny, 1809 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Accipitriformes (Order) > Accipitridae (Family)
 Triorchis Clerc, 1903 accepted as Hymenolepis Weinland, 1858 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Hymenolepididae (Family)
 Triorchis Millan, 1765 accepted as Spiranthes L.C. Richard, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Trioza
     Trioza Bremi, 1885 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Trioza Förster, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Triozidae (Family)

Triozocera
     Triozocera Pierce, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Strepsiptera (Order) > Corioxenidae (Family)
 Triozocera Pierce, 1911 accepted as Triozocera Pierce, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Strepsiptera (Order) > Corioxenidae (Family)

Tripartites
     Tripartites Farsan, 1981 † · Animalia (Kingdom) > Mollusca (Phylum) > Cricoconarida (Class) > Tentaculitida (Order) > Tentaculitidae (Family)
     Tripartites M.P. Schemel, 1950 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tripeltis
     Tripeltis Cope, 1886 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tripeltis Thorell, 1889 accepted as Trithyreus Kraepelin, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Schizomida (Order) > Schizomidae (Family)

Triphlebia
 Triphlebia Stapf in Thiselton-Dyer, 1898 accepted as Eragrostis N.M. Wolf, 1776 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Triphlebia J.G. Baker in Beccari, 1886 accepted as Asplenium Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Aspleniaceae (Family)

Triphora
     Triphora Blainville, 1828 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Triphoridae (Family)
     Triphora T. Nuttall, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Triphosa
     Triphosa Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Triphosa Stephens, 1829 accepted as Triphosa Stephens, 1831 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Triphyllia
     Triphyllia Lin et al., 1992 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Triphyllia Reitter, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tetratomidae (Family)

Triphyllus
     Triphyllus Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycetophagidae (Family)
     Triphyllus Sturm, 1826 accepted as Triphyllus Latreille in Cuvier, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycetophagidae (Family)
 Triphyllus Seidlitz, 1888 accepted as Pseudotriphyllus Reitter, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycetophagidae (Family)
     Triphyllus Dejean, 1821 accepted as Triphyllus Latreille in Cuvier, 1829 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycetophagidae (Family)

Triphylus
 Triphylus accepted as Tripylus Philippi, 1845 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Prenasteridae (Family)
 Triphylus Hudson in Hudson & Gosse, 1889 accepted as Enteroplea Ehrenberg, 1831 · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Notommatidae (Family)

Triplacephalus
     Triplacephalus Lu & Chien, 1978 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Triplacephalus (Lu & Qian MS) T-M Zhou Liu et al., 1977 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Triplecia
 Triplecia Oehlert in Fischer, 1887 † accepted as Triplesia Hall, 1859 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Triplesiidae (Family)
 Triplecia Hall & Clarke, 1892 † accepted as Triplesia Hall, 1859 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Triplesiidae (Family)

Tripleura
     Tripleura Sandberger, 1889 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneroida (awaiting allocation) (Family)
 Tripleura Lindley, 1833 accepted as Zeuxine Lindley, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Triplexa
     Triplexa Mosely in Mosely & Kimmins, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Leptoceridae (Family)
     Triplexa Zhao, Zhou Zhen, Chen & Guo, 1998 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Triplochiton
 Triplochiton Alefeld, 1863 accepted as Triplochiton Alefeld, 1863 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvales (awaiting allocation) (Family)
     Triplochiton K. Schumann, 1900 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Triplograptus
     Triplograptus Richter, 1871 † (uncertain)· Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Graptolithina (awaiting allocation) (Order) > Graptolithina (awaiting allocation) (Family)
     Triplograptus Hundt, 1965 † (uncertain)· Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Graptolithina (awaiting allocation) (Order) > Graptolithina (awaiting allocation) (Family)

Triplophyllum
     Triplophyllum Simpson, 1900 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Streptelasmatidae (Family)
     Triplophyllum R.E. Holttum, 1986 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Tectariaceae (Family)

Tripodiscus
     Tripodiscus Haeckel, 1881 (uncertain)· Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Polycystinea (awaiting allocation) (Order) > Radiolaria (awaiting allocation) (Family)
 Tripodiscus Ehrenberg, 1840 accepted as Aulacodiscus C.G. Ehrenberg, 1844 · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Coscinodiscales (Order) > Aulacodiscaceae (Family)

Tripodium
 Tripodium accepted as Tripodion Medikus, 1787 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Tripodium Hovasse, 1932 † · Chromista (Kingdom) > Cercozoa (Phylum) > Thecofilosea (Class) > Ebriida (Order) > Ammodochiidae (Family)

Triporocolpatus
 Triporocolpatus F. Thiergart & U. Frantz, 1962 † accepted as Triporocolpatus F. Thiergart & U. Frantz, 1962 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Triporocolpatus F. Thiergart & U. Frantz, 1963 † accepted as Triporocolpatus F. Thiergart & U. Frantz, 1963 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Triporula
     Triporula Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Exechonellidae (Family)
     Triporula Canu & Lecointre, 1925 † accepted as Triporula Canu & Bassler, 1927 (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Exechonellidae (Family)

Triptera
     Triptera Quoy & Gaimard, 1825 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Triptera A.I. Proshkina-Lavrenko, 1945 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Asteromonadaceae (Family)

Tripteris
 Tripteris Menke, 1830 accepted as Tripteris Menke, 1830 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tripteris Lessing, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Tripteroides
     Tripteroides Giles, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Tripteroides Marsh, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Tripterospermum
     Tripterospermum Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Tripterospermum A.T. Brongniart, 1874 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Tripterus
     Tripterus M'Coy, 1848 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
 Tripterus Agassiz, 1846 accepted as Trisopterus Rafinesque, 1814 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)

Tripterygium
     Tripterygium J.D. Hooker in Bentham & J.D. Hooker, 1862 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
 Tripterygium Agassiz, 1846 accepted as Tripterygion Risso, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Tripterygiidae (Family)

Triptolemus
     Triptolemus Peckham, 1885 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Triptolemus Sollas, 1888 accepted as Triptolemma de Laubenfels in Moore, 1955 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Astrophorida (Order) > Pachastrellidae (Family)

Tripus
     Tripus Rafinesque, 1815 accepted as Tripus Rafinesque, 1815 (nomen nudum)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Tripus Agassiz, 1846 accepted as Ceratium Schrank, 1793 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Gonyaulacales (Order) > Ceratiaceae (Family)

Tripylus
     Tripylus Philippi, 1845 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Prenasteridae (Family)
     Tripylus (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Tripyloidida (Order) > Tripyloididae (Family)

Triquetra
     Triquetra Medikus, 1787 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Triquetra Mörch, 1853 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Triquetra Fairmaire, 1846 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
     Triquetra Conrad, 1846 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Triquetra Blainville, 1828 accepted as Anomalocardia Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Triquetrella
     Triquetrella Müller Hal., 1897 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Dicranaceae (Family)
 Triquetrella V.S. Maljavkina, 1949 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Triseptata
     Triseptata Hoshide, 1958 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Gregarinidae (Family)
 Triseptata Bondarev in Bondarev et al., 1965 † accepted as Bondarevia Carlson in Williams, Brunton & Carlson, 2002 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Huenellidae (Family)

Trisiola
     Trisiola Rafinesque, 1817 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Trisiola Rafinesque, 1825 accepted as Uniola Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Trisis
 Trisis Blainville, 1825 accepted as Trisidos Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)
 Trisis Oken, 1815 accepted as Trisidos Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Arcida (Order) > Arcidae (Family)

Trismegistus
     Trismegistus Reinhard, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Trismegistus Jordan & Snyder, 1904 accepted as Liparis Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Scorpaeniformes (Order) > Liparidae (Family)

Trisodontophyes
     Trisodontophyes Enslin, 1911 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trisodontophyes Pasteels, 1949 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Trisolenia
     Trisolenia Ashmead, 1887 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Cynipidae (Family)
     Trisolenia Ehrenberg, 1860 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Collozoidae (Family)

Trispondylus
     Trispondylus Williston, 1910 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Trispondylus Cope, 1884 † accepted as Phenacodus Cope, 1873 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Condylarthra (Order) > Phenacodontidae (Family)

Trissodon
     Trissodon Burmeister, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Trissodon Prell, 1936 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tristachya
     Tristachya C.G.D. Nees, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Tristachya J. Lilpop, 1938 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetidae (awaiting allocation) (Order) > Equisetidae (awaiting allocation) (Family)

Tristania
     Tristania Kirby, 1892 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Tristania Böttger, 1878 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tristania R. Brown ex W.T. Aiton, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Tristania J.L.M. Poiret, 1816 accepted as Spartina Schreber, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Tristanites
     Tristanites G. Saporta, 1865 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Tristanites H. Deane, 1902 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Tristemma
     Tristemma Brandt, 1835 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tristemma Bartsch, 1906 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Urocoptidae (Family)
     Tristemma A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Tristemon
 Tristemon Klotzsch, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Tristemon Rafinesque, 1838 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Juncaceae (Family)
     Tristemon Rafinesque, 1819 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Alismatales (awaiting allocation) (Family)
 Tristemon Scheele, 1848 accepted as Cucurbita Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)

Tristephanus
     Tristephanus Brandt, 1835 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tristephanus Kieffer, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Tristira
     Tristira Brunner, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tristiridae (Family)
     Tristira Radlkofer, 1879 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Tristoma
     Tristoma Cuvier, 1817 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Capsalidea (Order) > Capsalidae (Family)
     Tristoma Deshayes, 1832 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tristria
     Tristria Stål, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Tristria Holynski, 2001 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Trisulcus
     Trisulcus Hitchcock, 1865 † (uncertain)· Animalia (Kingdom) > Animalia (awaiting allocation) (Phylum) > Animalia (awaiting allocation) (Class) > Animalia (awaiting allocation) (Order) > Animalia (awaiting allocation) (Family)
     Trisulcus Popofsky, 1913 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Plagiacanthidae (Family)

Tritaenia
 Tritaenia Amyot, 1846 accepted as Tritaenia Amyot, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tritaenia Motschoulsky in Schrenck, 1860 accepted as Zygogramma Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Tritaenia K. Mägdefrau & H. Rudolf, 1969 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Miroviaceae (Family)

Tritaxis
     Tritaxis Schubert, 1921 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Trochamminida (Order) > Trochamminidae (Family)
 Tritaxis Baillon, 1858 accepted as Trigonostemon Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Triteleia
     Triteleia Kieffer, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Triteleia Douglas ex J. Lindley, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)

Trithrix
 Trithrix Reitter in Heyden, Reitter & Weise, 1906 accepted as Trithrix Reitter in Heyden, Reitter & Weise, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Trithrix Schilsky, 1886 accepted as Chaetomalachius Kraatz, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melyridae (Family)

Tritia
     Tritia Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
 Tritia A. Adams, 1853 accepted as Nassarius Duméril, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)
 Tritia Berlese, 1883 accepted as Oribotritia Jacot, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Oribotritiidae (Family)

Tritodynamia
     Tritodynamia Ortmann, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Macrophthalmidae (Family)
 Tritodynamia Nobili, 1905 accepted as Tritodynamia Ortmann, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Macrophthalmidae (Family)

Tritoma
     Tritoma Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Tritoma Geoffroy, 1762 accepted as Tritoma Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Tritoma Szépligeti, 1908 accepted as Phanerotoma Wesmael, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Tritoma Müller, 1764 accepted as Tritoma Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
 Tritoma Ker-Gawler, 1804 accepted as Kniphofia Moench, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asphodelaceae (Family)

Tritomegas
     Tritomegas Duméril & Bibron, 1854 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Tritomegas Amyot & Serville, 1843 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cydnidae (Family)

Tritomodon
     Tritomodon Cope, 1882 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Diprotodontia (Order) > Macropodidae (Family)
 Tritomodon Turczaninow, 1848 accepted as Enkianthus Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Triton
     Triton Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cirripedia (awaiting allocation) (Order) > Cirripedia (awaiting allocation) (Family)
 Triton Montfort, 1810 accepted as Charonia Gistel, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)
 Triton Laurenti, 1768 accepted as Triturus Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Salamandridae (Family)

Tritonella
 Tritonella Swainson, 1839 accepted as Triturus Rafinesque, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Caudata (Order) > Salamandridae (Family)
 Tritonella A. Adams, 1852 accepted as Nassarius Duméril, 1805 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Nassariidae (Family)

Tritonellium
 Tritonellium Mörch, 1877 accepted as Charonia Gistel, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)
 Tritonellium Valenciennes, 1858 accepted as Tritonium O. F. Müller, 1776 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Tritonia
 Tritonia Turton, 1825 accepted as Triton Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cirripedia (awaiting allocation) (Order) > Cirripedia (awaiting allocation) (Family)
     Tritonia Cuvier, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tritoniidae (Family)
     Tritonia Ker-Gawler, 1802 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Tritonia Meigen, 1800 accepted as Tritonia Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Tritonia Geyer in Hübner, 1832 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tritonia accepted as Tritania Dillon & Dillon, 1945 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tritoniopsis
     Tritoniopsis Eliot, 1905 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Tritoniidae (Family)
     Tritoniopsis H.M.L. Bolus, 1929 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tritonium
 Tritonium Röding, 1798 accepted as Charonia Gistel, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)
 Tritonium O. F. Müller, 1776 accepted as Buccinum Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Tritonofusus
     Tritonofusus Mörch, 1857 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
 Tritonofusus Beck, 1847 accepted as Colus Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)

Tritonopsis
     Tritonopsis Conrad, 1865 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Tritonopsis Gistl, 1868 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tritonopsis accepted as Tritoniopsis H.M.L. Bolus, 1929 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tritropis
 Tritropis Fitzinger, 1843 accepted as Tritropis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tritropis Boeck, 1871 accepted as Rhachotropis S.I. Smith, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Eusiridae (Family)
 Tritropis Brunner, 1893 accepted as Apotropis Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Triurus
     Triurus Lacepède, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)
 Triurus Swainson, 1839 accepted as Harpadon Lesueur, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Synodontidae (Family)

Triversus
 Triversus Sher, 1973 accepted as Tylenchorhynchus Cobb, 1913 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Telotylenchidae (Family)
     Triversus Takemura, 1986 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Trivia
     Trivia Koch, 1850 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Trivia Broderip, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Triviidae (Family)
     Trivia Gray, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Triviidae (Family)

Trixago
 Trixago Rafinesque, 1837 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Trixago A. Haller, 1768 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Trixago C. Steven, 1823 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)

Trixella
     Trixella Fourreau, 1869 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Trixella Mesnil, 1980 accepted as Trixa Meigen, 1824 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Trixis
 Trixis Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Haloragaceae (Family)
     Trixis P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Trixis O. Swartz, 1788 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trizygia
     Trizygia Skuse, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
     Trizygia J.F. Royle, 1834 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Salviniales (Order) > Marsileaceae (Family)

Trochalia
     Trochalia Pomel, 1883 (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Trochalia Sharpe, 1850 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Heterostrophia (awaiting allocation) (Family)

Trochalus
     Trochalus Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Trochalus Dejean, 1833 accepted as Cybister Curtis, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Trochammina
     Trochammina Parker & Jones, 1859 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Trochamminida (Order) > Trochamminidae (Family)
     Trochammina Reuss, 1859 † (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Trochatella
 Trochatella Swainson, 1840 accepted as Eutrochatella Fischer, 1885 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Helicinidae (Family)
 Trochatella Lesson, 1831 accepted as Trochita Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Calyptraeidae (Family)

Trochderma
     Trochderma Gistl, 1848 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Trochderma Dahl, 1823 accepted as Trogoderma Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Trochella
     Trochella Gray, 1868 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trochella M'Coy in Griffith, 1844 † accepted as Trochella M'Coy in Griffith, 1844 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trochella Penard, 1922 accepted as Cirranter Jankowski, 1964 (junior homonym)· Chromista (Kingdom) > Ciliophora (Phylum) > Heterotrichea (Class) > Metopida (Order) > Apometopidae (Family)

Trochetia
 Trochetia Lamarck, 1818 accepted as Trocheta Dutrochet, 1817 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Arhynchobdellida (Order) > Erpobdellidae (Family)
 Trochetia A.P. de Candolle, 1823 accepted as Ruizia Cavanilles, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Trochicola
     Trochicola Dollfus, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Mytilicolidae (Family)
     Trochicola S.K. Srivastava, 1972 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Trochila
     Trochila E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
 Trochila Gray, 1868 accepted as Trochita Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Calyptraeidae (Family)

Trochilia
 Trochilia Heinemann, 1859 accepted as Trochilia Heinemann, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trochilia Dujardin, 1841 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Dysteriidae (Family)

Trochilina
     Trochilina Felder, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Trochilina Gray, 1868 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trochilioides
     Trochilioides Kahl in Gong & Song, 2006 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Hartmannulidae (Family)
     Trochilioides Kahl, 1931 accepted as Trochilioides Kahl in Gong & Song, 2006 (nomen nudum)· Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Cyrtophorida (Order) > Hartmannulidae (Family)

Trochiliscus
     Trochiliscus Ehrenberg, 1858 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Trochiliscus A.P. Karpinsky, 1906 † · Plantae (Kingdom) > Charophyta (Phylum) > Charophyceae (Class) > Sycidiales (Order) > Trochiliscaceae (Family)

Trochilus
     Trochilus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
 Trochilus Wood, 1835 accepted as Trochilus Wood, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Trochilus Forster, 1817 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Trochiscia
     Trochiscia Kützing, 1834 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)
     Trochiscia Ehrenberg, 1834 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Trochiscia F.T. Kützing, 1845 (uncertain)· Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
 Trochiscia Montagne, 1837 accepted as Trochiscia Kützing, 1834 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Oocystaceae (Family)

Trochiscus
     Trochiscus Heyden, 1826 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Trochiscus Mandel'shtam, 1956 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Trochiscus Jakovlev, 1879 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Trochiscus Held, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Trochiscus O.E. Schulz, 1933 accepted as Rorippa Scopoli, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Trochiscus G. B. Sowerby I, 1838 accepted as Norrisia Bayle, 1880 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Tegulidae (Family)

Trochocystites
     Trochocystites Barrande, 1859 † accepted as Trochocystites Barrande, 1859 † (nomen nudum)· Animalia (Kingdom) > Echinodermata (Phylum) > Homostelea (Class) > Cincta (Order) > Trochocystitidae (Family)
     Trochocystites De Verneuil & Barrande, 1860 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Homostelea (Class) > Cincta (Order) > Trochocystitidae (Family)

Trochoderma
     Trochoderma Théel, 1877 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Myriotrochidae (Family)
     Trochoderma Ridley & Dendy, 1886 accepted as Axoniderma Ridley & Dendy, 1887 (junior homonym)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Poecilosclerida (Order) > Cladorhizidae (Family)

Trochodon
     Trochodon Agassiz, 1846 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)
     Trochodon Seeley, 1861 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trocholites
     Trocholites Conrad, 1838 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Tarphycerida (Order) > Trocholitidae (Family)
     Trocholites Emmons, 1842 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trochophora
     Trochophora R.T. Moore, 1955 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Trochophora Konow, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Trochophyllum
     Trochophyllum Milne-Edwards & Haime, 1850 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Laccophyllidae (Family)
     Trochophyllum H.C. Wood, 1861 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetidae (awaiting allocation) (Order) > Equisetidae (awaiting allocation) (Family)

Trochopora
     Trochopora Kettner, 1913 † (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Trochopora d'Orbigny, 1849 † accepted as Lunulites Lamarck, 1816 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Lunulitidae (Family)

Trochopsis
     Trochopsis Ehrenberg, 1834 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Trochopsis Gemmellaro, 1878 † accepted as Trochopsidea Wenz, 1938 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Trochopus
 Trochopus Carpenter, 1898 accepted as Rhagovelia Mayr, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Veliidae (Family)
     Trochopus Diesing, 1850 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Capsalidea (Order) > Capsalidae (Family)

Trochorrhopalus
 Trochorrhopalus Marshall, 1928 accepted as Trochorrhopalus Marshall, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Trochorrhopalus Rye, 1879 accepted as Trochorhopalus Kirsch, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Trochorrhopalus Champion, 1914 accepted as Trochorhopalus Kirsch, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Trochoseris
     Trochoseris Milne-Edwards & Haime, 1849 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Agariciidae (Family)
     Trochoseris Poeppig & Endlicher ex Endlicher, 1838 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trochosodon
     Trochosodon Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Conescharellinidae (Family)
     Trochosodon Canu & Lecointre, 1925 † accepted as Trochosodon Canu & Bassler, 1927 (nomen nudum)· Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Conescharellinidae (Family)

Trochosoma
 Trochosoma Delage & Hérouard, 1903 accepted as Trochosoma Delage & Hérouard, 1903 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Molpadiida (Order) > Molpadiidae (Family)
     Trochosoma Chamberlin, 1921 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Sphaerotheriida (Order) > Sphaerotheriidae (Family)

Trochospira
     Trochospira Hamaoui & Saint-Marc, 1970 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Nezzazatidae (Family)
     Trochospira Hamaoui, 1965 † accepted as Trochospira Hamaoui & Saint-Marc, 1970 † (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Nezzazatidae (Family)

Trochotoma
     Trochotoma Lycett, 1848 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Trochotoma Eudes-Deslongchamps, 1842 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Trochotomidae (Family)

Trochulina
     Trochulina Agassiz, 1844 † accepted as Trochulina Agassiz, 1844 † (nomen nudum)· Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Discorbidae (Family)
     Trochulina d'Orbigny, 1839 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Discorbidae (Family)

Trochulus
     Trochulus Beck, 1837 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicidae (Family)
     Trochulus Westerlund, 1886 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Trochus
     Trochus Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)
 Trochus Trentepohl, 1825 accepted as Trogus Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Trochus R. Gersonde & D.M. Harwood, 1990 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Troctes
     Troctes Cabanis & Heine, 1863 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Trogoniformes (Order) > Trogonidae (Family)
 Troctes Burmeister, 1839 accepted as Liposcelis Motschoulsky, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Liposcelidae (Family)

Trocus
 Trocus Ponzi, 1872 accepted as Trochus Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Trochidae (Family)
 Trocus Molina, 1810 accepted as Trogus Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Troglobacanius
     Troglobacanius Vomero, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Troglobacanius Vomero, 1973 accepted as Troglobacanius Vomero, 1974 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Troglocarcinus
     Troglocarcinus Verrill, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Cryptochiridae (Family)
     Troglocarcinus Fize & Serène, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)

Troglodytes
     Troglodytes Vieillot, 1807 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Troglodytidae (Family)
 Troglodytes Möhring, 1758 accepted as Troglodytes Vieillot, 1807 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Certhiidae (Family)
 Troglodytes Geoffroy, 1812 accepted as Pan Oken, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Hominidae (Family)
     Troglodytes Gabriel, 1876 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)

Troglosternus
     Troglosternus Bickhardt, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Troglosternus Bickhardt, 1914 accepted as Troglosternus Bickhardt, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Trogoderma
     Trogoderma Berthold in Latreille, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
     Trogoderma Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Trogoderma Háva, 2007 accepted as Trogoderma Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Trogon
     Trogon Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Trogoniformes (Order) > Trogonidae (Family)
 Trogon Möhring, 1758 accepted as Trogon Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Trogoniformes (Order) > Trogonidae (Family)

Trogulus
     Trogulus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Trogulidae (Family)
 Trogulus Brodie, 1874 † accepted as Cybister Curtis, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Trogus
     Trogus Panzer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Trogus Leach, 1817 accepted as Cybister Curtis, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Troitskiella
     Troitskiella B. Skvortzov, 1968 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Phacotaceae (Family)
 Troitskiella Poppius, 1914 accepted as Sthenaridea Reuter, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Trolliella
     Trolliella Nordsieck, 1981 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Trolliella T. Herzog, 1939 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnales (Order) > Sematophyllaceae (Family)

Trombiculoides
     Trombiculoides Jacot, 1938 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)
 Trombiculoides Womersley & Heaslip, 1943 accepted as Heaslipia Ewing, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)

Tromera
 Tromera P.A. Saccardo, 1889 accepted as · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Tromera Förster, 1868 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Tromera A. Massalongo ex Körber, 1865 accepted as Sarea E.M. Fries, 1825 · Fungi (Kingdom) > Ascomycota (Phylum) > Sareomycetes (Class) > Sareales (Order) > Zythiaceae (Family)
 Tromera Swinderen, 1822 accepted as Madiza Fallén, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Milichiidae (Family)

Trommsdorffia
     Trommsdorffia J.J. Bernhardi, 1800 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Trommsdorffia C.F.P. Martius, 1825 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Tropacarus
 Tropacarus Ewing, 1917 accepted as Steganacarus Ewing, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Phthiracaridae (Family)
 Tropacarus Cunliffe, 1964 accepted as Neotropacarus Baker, 1985 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)

Trophonia
 Trophonia Milne Edwards, 1836 accepted as Stylarioides Delle Chiaje, 1831 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)
     Trophonia Cuvier, 1830 accepted as Trophonia Cuvier, 1830 (taxon inquirendum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)
     Trophonia Johnston, 1840 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Flabelligerida (Order) > Flabelligeridae (Family)

Tropicoseius
     Tropicoseius Baker & Yunker, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Ascidae (Family)
 Tropicoseius Gupta, 1979 accepted as Amblyseiulella Muma, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Phytoseiidae (Family)

Tropidebora
     Tropidebora Pilsbry, 1947 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tropidebora Pilsbry, 1944 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tropidia
     Tropidia Meigen, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
     Tropidia J. Lindley, 1833 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tropidina
     Tropidina Mörch, 1864 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tropidina Adams, 1854 accepted as Valvata O. F. Müller, 1774 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Valvatidae (Family)
     Tropidina Martins & Galileo, 2007 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tropidiscus
     Tropidiscus Meek, 1866 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca incertae sedis (Class) > Gastropoda/Monoplacophora incertae sedis (Order) > Bellerophontidae (Family)
 Tropidiscus Stein, 1850 accepted as Planorbis O. F. Müller, 1773 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Planorbidae (Family)

Tropidocochlis
     Tropidocochlis Locard, 1899 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tropidocochlis Locard, 1893 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tropidocoris
     Tropidocoris Schummel, 1828 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tropidocoris Agassiz, 1846 accepted as Tropidocoris Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Tropidoderes
 Tropidoderes Gistel, 1856 accepted as Tropideres Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
 Tropidoderes Gemminger & Harold, 1872 accepted as Tropideres Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)

Tropidodryas
     Tropidodryas Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Tropidodryas Cope, 1885 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tropidogaster
     Tropidogaster Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Opluridae (Family)
 Tropidogaster Duméril & Bibron, 1837 accepted as Tropidogaster Duméril & Bibron, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tropidolepis
     Tropidolepis Tausch, 1829 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tropidolepis Gray, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)

Tropidomyia
     Tropidomyia Williston, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Conopidae (Family)
     Tropidomyia Brauer & Bergenstamm, 1889 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dexiidae (Family)

Tropidonotus
     Tropidonotus Kuhl in Férussac, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lanthonotidae (Family)
 Tropidonotus Stål, 1878 accepted as Xyleus Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)

Tropidophis
     Tropidophis Cocteau & Bibron in Sagra, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropidophiidae (Family)
 Tropidophis Gray, 1849 accepted as Atretium Cope, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Tropidophora
     Tropidophora Troschel, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiidae (Family)
 Tropidophora accepted as Tropidophara Bierman, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)
 Tropidophora Thomson, 1858 accepted as Physoma Chapuis in Lacordaire, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Tropidophora Jeffreys, 1882 accepted as Tropidomya Dall & E. A. Smith, 1886 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Cuspidariidae (Family)

Tropidophorus
     Tropidophorus Jan, 1865 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Tropidophorus Duméril & Bibron, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
 Tropidophorus Gistel, 1856 accepted as Tropiphorus Schönherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tropidophorus Gemminger & Harold, 1871 accepted as Tropiphorus Schönherr, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tropidopsis
     Tropidopsis Brauer & Bergenstamm, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Tropidopsis Ashmead, 1893 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Proctotrupidae (Family)

Tropidopterus
 Tropidopterus Gemminger & Harold, 1868 accepted as Tropopterus Solier in Gay, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Tropidopterus Cazurro Ruiz, 1897 accepted as Adelium Kirby, 1819 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Tropidopterus Blanchard, 1845 accepted as Tropidopterus Cazurro Ruiz, 1897 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Tropidosaura
     Tropidosaura Fitzinger, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)
     Tropidosaura Boie in Férussac, 1826 accepted as Tropidosaura Fitzinger, 1826 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Lacertidae (Family)

Tropidostethus
 Tropidostethus Marshall, 1868 accepted as Tropidostethus Marshall, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
     Tropidostethus Philippi, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tristiridae (Family)
 Tropidostethus Ogilby, 1895 accepted as Iso Jordan & Starks, 1901 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Notocheiridae (Family)

Tropidurus
     Tropidurus Wied, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)
 Tropidurus Wiegmann, 1835 accepted as Tetrameres Creplin, 1846 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Tetrameridae (Family)

Tropimenelytron
     Tropimenelytron Pace, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Tropimenelytron Scheerpeltz, 1951 accepted as Tropimenelytron Pace, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tropinotus
     Tropinotus Kuhl & Hasselt, 1822 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Tropinotus Audinet-Serville, 1831 accepted as Xyleus Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)

Tropirhinus
     Tropirhinus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tropirhinus Schoenherr, 1840 accepted as Tropidorrhinus Gemminger & Harold, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tros
     Tros Haworth, 1831 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
 Tros Kirby, 1896 accepted as Pachliopta Reakirt, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Papilionidae (Family)

Troschelia
     Troschelia Duncan & Sladen, 1883 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Troschelia Mörch, 1876 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
 Troschelia Klotzsch & Schomburgk, 1843 accepted as Schiekia Meisner, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Haemodoraceae (Family)

Trossulus
     Trossulus R. Ross & P.A. Sims, 2002 † · Chromista (Kingdom) > Bacillariophyta (Phylum) > Coscinodiscophyceae (Class) > Coscinodiscales (Order) > Heliopeltaceae (Family)
     Trossulus Jordan, 1921 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Trotomma
     Trotomma Kiesenwetter, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scraptiidae (Family)
 Trotomma LeConte, 1862 accepted as Symphora Leconte, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Melandryidae (Family)

Trotteria
 Trotteria P.A. Saccardo, 1919 accepted as Actinopeltis F. von Höhnel, 1907 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Microthyriales (Order) > Microthyriaceae (Family)
     Trotteria Kieffer, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Trouessartella
     Trouessartella Cossman in Trouessart, 1899 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Trouessartella Lohmann, 1901 accepted as Lohmannella Trouessart, 1901 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Halacaridae (Family)

Trouessartia
     Trouessartia Cossman, 1899 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Trouessartia Canestrini, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Trouessartiidae (Family)

Troximon
 Troximon T. Nuttall, 1841 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Troximon J. Gaertner, 1791 accepted as Krigia Schreber, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Trulla
     Trulla T.M. Harris, 1979 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
 Trulla Kaup, 1858 accepted as Cynoglossus Hamilton, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Cynoglossidae (Family)

Truncaria
     Truncaria A. Adams & Reeve, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Truncaria A.P. de Candolle, 1828 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)

Truncatella
     Truncatella Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)
     Truncatella R.L. Steyaert, 1949 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Amphisphaeriales (Order) > Bartaliniaceae (Family)

Truncatellina
     Truncatellina Lowe, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Vertiginidae (Family)
     Truncatellina d'Orbigny, 1826 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Truncatula
     Truncatula Hagenow, 1851 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)
     Truncatula Leach, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Truncatula Caziot, 1910 accepted as Truncatella Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Truncatellidae (Family)

Truncatulina
 Truncatulina Reuss, 1874 accepted as Cibicides de Montfort, 1808 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Cibicididae (Family)
 Truncatulina d'Orbigny, 1826 accepted as Cibicides de Montfort, 1808 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Cibicididae (Family)

Truncaturus
     Truncaturus Cassagne-Mejean, 1966 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Acari (awaiting allocation) (Order) > Acari (awaiting allocation) (Family)
 Truncaturus Thor, 1901 accepted as Arrenurus Dugès, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Arrenuridae (Family)

Truncaudum
     Truncaudum Hulcr & Cognato, 2010 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Truncaudum Hulcr & Cognato, 2020 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Truncularia
     Truncularia Wiegmann, 1832 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Truncularia Monterosato, 1917 accepted as Hexaplex Perry, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Trupanea
     Trupanea Macquart, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
     Trupanea Schrank, 1795 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Lonchaeidae (Family)

Trupialis
     Trupialis Merrem in Ersch & Gruber, 1826 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Trupialis Bonaparte, 1850 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Fringillidae (Family)

Trutta
     Trutta Geoffroy, 1767 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)
 Trutta Walbaum, 1792 accepted as Salmo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)
 Trutta Garsault, 1764 accepted as Salmo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)
 Trutta Linnaeus, 1758 accepted as Salmo Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Salmoniformes (Order) > Salmonidae (Family)

Tryblidium
     Tryblidium Lindström, 1880 † · Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > Tryblidiida (Order) > Tryblidiidae (Family)
 Tryblidium Wallroth, 1833 accepted as Triblidium Rebentisch, 1804 · Fungi (Kingdom) > Ascomycota (Phylum) > Archaeorhizomycetes (Class) > Triblidiales (Order) > Triblidiaceae (Family)

Trygaeus
     Trygaeus Dohrn, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Pycnogonida (Class) > Pantopoda (Order) > Ammotheidae (Family)
 Trygaeus Sharp, 1874 accepted as Apatetica Westwood, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Trygon
     Trygon Brehm, 1831 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)
 Trygon Cuvier (ex Adanson), 1816 accepted as Dasyatis Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)
 Trygon Geoffroy Saint-Hilaire, 1817 accepted as Taeniura Müller & Henle, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)
 Trygon Reichenbach, 1852 accepted as Trugon Gray, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)

Tryonella
     Tryonella Stephenson, 1943 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
 Tryonella Pichi Sermolli, 1975 accepted as Doryopteris J. Smith, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Tryonia
 Tryonia Stephenson, 1941 † accepted as Tryonella Stephenson, 1943 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)
     Tryonia Stimpson, 1865 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cochliopidae (Family)
     Tryonia E. Schuettpelz, J. Prado & A.T. Cochran, 2014 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Trypanidius
     Trypanidius Blanchard in d'Orbigny, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Trypanidius Dejean, 1835 accepted as Trypanidius Blanchard in d'Orbigny, 1846 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Trypanidius Waterhouse, 1889 accepted as Trypantius Waterhouse, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Trypanoxyuris
     Trypanoxyuris Sandosham, 1950 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
     Trypanoxyuris Vevers, 1923 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Oxyuridae (Family)

Trypetes
     Trypetes Schenck, 1859 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Trypetes Schönherr, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Trypetes Dejean, 1835 accepted as Trypetes Schönherr, 1836 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trypetes Tomlin, 1929 † accepted as Diatrypesis Tomlin, 1929 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Metacerithiidae (Family)

Tryphaena
 Tryphaena Meigen, 1831 accepted as Triphaena Ochsenheimer, 1816 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Tryphaena Gould, 1849 accepted as Tilmatura Reichenbach, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)

Tryphera
     Tryphera Blume, 1826 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Tryphera Meigen, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Tryphon
     Tryphon Fallén, 1813 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Tryphon Maitland, 1897 accepted as Trophon Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Trypodendrum
 Trypodendrum Agassiz, 1846 accepted as Trypodendron Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Trypodendrum Gistel, 1856 accepted as Trypodendron Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Trypoderma
     Trypoderma Wiedemann, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Trypoderma Meigen, 1824 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Trypolister
     Trypolister Bickhardt, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Trypolister Bickhardt, 1914 accepted as Trypolister Bickhardt, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Tryponaeus
 Tryponaeus Erichson, 1834 accepted as Trypanaeus Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Tryponaeus Eschscholtz, 1829 accepted as Trypanaeus Eschscholtz, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Trypopitys
 Trypopitys Redtenbacher, 1849 accepted as Priobium Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)
 Trypopitys Brimley, 1938 accepted as Priobium Motschoulsky, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Tschernovia
     Tschernovia Samoilova in Samoilova & Smirnova, 1972 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Tschernovia Kalashnikov, 1993 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Anopliidae (Family)
 Tschernovia M.F. Neuburg, 1948 † accepted as Tchernovia M.D. Zalessky, 1930 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Equisetales (Order) > Tchernoviaceae (Family)

Tschernyschewiella
     Tschernyschewiella Toll, 1899 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)
 Tschernyschewiella Frédéricks, 1924 † accepted as Kochiproductus Dunbar, 1955 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)

Tsengia
     Tsengia K.C. Fan & Y.P. Fan, 1962 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Halymeniales (Order) > Tsengiaceae (Family)
 Tsengia Li, 1964 accepted as Khawia Hsü, 1935 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Caryophyllidea (Order) > Lytocestidae (Family)

Tsingya
     Tsingya R. Capuron, 1969 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)
     Tsingya Hoch & Bourgoin, 2013 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Meenoplidae (Family)

Tsunamia
     Tsunamia Lehrer, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bengaliidae (Family)
     Tsunamia J.A. West, G.I. Hansen, G.C. Zuccarello & T. Hanyuda in West et al., 2016 · Plantae (Kingdom) > Rhodophyta (Phylum) > Stylonematophyceae (Class) > Stylonematales (Order) > Stylonemataceae (Family)

Tuarkyria
     Tuarkyria Prozorovskii, 1977 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Tuarkyria Ischenko, 2004 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Chlidonophoridae (Family)

Tuba
     Tuba Fabricius, 1823 accepted as Tuba Fabricius, 1823 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Tuba Barrande in Verneuil, 1848 † accepted as Tuba Barrande in Verneuil, 1848 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tuba Lea, 1833 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Mathildidae (Family)
 Tuba Oken, 1815 accepted as Tuba Oken, 1815 · Animalia (Kingdom) > Nemertea (Phylum) > Nemertea (awaiting allocation) (Class) > Nemertea (awaiting allocation) (Order) > Nemertea (awaiting allocation) (Family)
 Tuba Duchassaing & Michelotti, 1864 accepted as Callyspongia Duchassaing & Michelotti, 1864 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Haplosclerida (Order) > Callyspongiidae (Family)
 Tuba Renier, 1804 accepted as Myxicola Koch in Renier, 1847 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Sabellidae (Family)

Tubaria
     Tubaria (W.G. Smith) Gillet, 1876 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Inocybaceae (Family)
     Tubaria Muir-Wood & Cooper, 1960 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Productidae (Family)
 Tubaria Thienemann, 1828 accepted as Stentor Oken, 1815 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Tubastraea
     Tubastraea Lesson, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Dendrophylliidae (Family)
 Tubastraea Agassiz, 1846 accepted as Tubastraea Lesson, 1829 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Dendrophylliidae (Family)

Tubella
 Tubella Carter, 1881 accepted as Trochospongilla Vejdovsky, 1888 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Spongillida (Order) > Spongillidae (Family)
     Tubella Odin, 2008 † · Protozoa (Kingdom) > Calcitarcha (Phylum) > (Class) > (Order) > (Family)

Tuber
     Tuber Schröder, Medioli & Scott, 1989 † · Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
     Tuber F.H. Wiggers, 1780 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Tuberaceae (Family)

Tuberaster
 Tuberaster Boccone, 1697 accepted as Polyporus P. Micheli ex Adanson, 1763 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Polyporaceae (Family)
 Tuberaster Peron & Gauthier, 1885 † accepted as Hemipatagus Desor, 1858 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Loveniidae (Family)

Tubercularia
     Tubercularia Blainville, 1827 (uncertain)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Tubercularia A.G. Vologdin, 1962 † accepted as · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Scandophycaceae (Family)
     Tubercularia Tode, 1790 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Nectriaceae (Family)
 Tubercularia F.H. Wiggers, 1780 accepted as Dibaeis Clements, 1909 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Pertusariales (Order) > Icmadophilaceae (Family)
 Tubercularia J. Stackhouse, 1816 accepted as Cystoclonium Kützing, 1843 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Cystocloniaceae (Family)

Tuberculatosporites
 Tuberculatosporites R.K. Jain, 1968 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Tuberculatosporites R. Imgrund, 1960 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tuberculina
     Tuberculina Tode ex P.A. Saccardo, 1880 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Helicobasidiales (Order) > Helicobasidiaceae (Family)
     Tuberculina Ebray, 1858 † (uncertain)· Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Tuberculina Gregorio, 1882 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tuberella
     Tuberella Li in Li Yang & Feng, 1987 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Overtoniidae (Family)
 Tuberella Keller, 1880 accepted as Aaptos Gray, 1867 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Suberitida (Order) > Suberitidae (Family)
 Tuberella Vogel, Xu & Langenstrassen, 1989 † accepted as Anopliella Racheboeuf, 1998 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Anopliidae (Family)
     Tuberella V.S. Maljavkina, 1949 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Tuberister
 Tuberister Gomy, 1980 accepted as Bacanius Leconte, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Tuberister Mazur, 1984 accepted as Bacanius Leconte, 1853 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Tuberocorpus
     Tuberocorpus Shinji, 1932 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Tuberocorpus Shinji, 1929 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Tubicauda
     Tubicauda Chakrabarti & Bhattacharya, 1982 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Tubicauda Jousseaume, 1880 accepted as Murex Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Tubicenus
     Tubicenus Dejean, 1821 accepted as Tubicenus Dejean, 1821 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Tubicenus Latreille, 1830 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Tubicola
     Tubicola Rafinesque, 1815 accepted as Tubicola Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta (awaiting allocation) (Family)
 Tubicola Lockington, 1877 accepted as Pinnixa White, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pinnotheridae (Family)

Tubidendrum
     Tubidendrum Kozlowski, 1938 † accepted as Tubidendrum Kozlowski, 1949 † (nomen nudum)· Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Tuboidea (Order) > Cyclograptidae (Family)
     Tubidendrum Kozlowski, 1949 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Tuboidea (Order) > Tubidendridae (Family)

Tubiella
     Tubiella Hollerbach, 1935 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Romeriaceae (Family)
     Tubiella Rauzer-Chernousova, 1949 † accepted as Tubiphytes Maslov, 1956 † (junior homonym)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > Tubiphytidae (Family)

Tubifera
 Tubifera Meigen, 1800 accepted as Eristalis Latreille, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
     Tubifera J.F. Gmelin, 1792 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Reticulariales (Order) > Reticulariaceae (Family)

Tubifex
     Tubifex Lamarck, 1816 ['Tubifex' taxa now in Polychaeta] · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Capitellida (Order) > Maldanidae (Family)
     Tubifex Lamarck, 1816 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Naididae (Family)

Tubilustrium
     Tubilustrium O'Dogherty, 1994 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
     Tubilustrium Distant, 1916 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Issidae (Family)

Tubithyris
     Tubithyris Buckman, 1918 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)
     Tubithyris Buckman, 1915 † accepted as Tubithyris Buckman, 1918 (nomen nudum)· Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)

Tubolaimella
 Tubolaimella Allgén, 1934 accepted as Tubolaimoides Gerlach, 1963 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Leptolaimida (Order) > Tubolaimoididae (Family)
     Tubolaimella Cobb, 1933 · Animalia (Kingdom) > Nematoda (Phylum) > Enoplea (Class) > Enoplida (Order) > Anticomidae (Family)

Tubula
     Tubula Diakonoff, 1960 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tortricidae (Family)
     Tubula Golubkova, Kushim, Kuzmenkova & Laptsevich, 2022 † · Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Tubulanus
     Tubulanus Renier, 1804 · Animalia (Kingdom) > Nemertea (Phylum) > Anopla (Class) > Palaeonemertea (Order) > Tubulanidae (Family)
 Tubulanus Linnavuori, 1955 † accepted as Linnatanus de Menezes, 1973 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Tubularia
     Tubularia Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tubulariidae (Family)
 Tubularia Roussel, 1806 accepted as Enteromorpha Link in C.G.D. Nees, 1820 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Tubularia Fabricius, 1780 accepted as Tubularia Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tubulariidae (Family)
     Tubularia Brun, 1894 · Chromista (Kingdom) > Bacillariophyta (Phylum) > (Class) > Bacillariophyta (awaiting allocation) (Order) > (Family)

Tubulibairdia
     Tubulibairdia Blumenstengel, 1970 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Metacopida (Order) > Metacopida (awaiting allocation) (Family)
     Tubulibairdia Swartz, 1936 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Pachydomellidae (Family)

Tubulifera
 Tubulifera Spuler, 1910 accepted as Tubuliferola Strand, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)
     Tubulifera Schumacker-Lambry, 1978 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)
 Tubulifera O.F. Müller ex N.J. Jacquin, 1779(?) accepted as Tubifera J.F. Gmelin, 1792 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Reticulariales (Order) > Reticulariaceae (Family)
     Tubulifera Zopf in Schenk, 1885 (uncertain)· Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxomycetes (Class) > Reticulariales (Order) > Reticulariaceae (Family)

Tubulites
     Tubulites G. Bein, 1932 † (uncertain)· Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Codiaceae (Family)
 Tubulites Gesner, 1758 † accepted as · Animalia (Kingdom) > Annelida (Phylum) > Annelida (awaiting allocation) (Class) > Annelida (awaiting allocation) (Order) > Annelida (awaiting allocation) (Family)

Tubulosa
 Tubulosa E.A. Assejeva in Yu.V. Teslenko, 1982 † accepted as Tubulosa E.A. Assejeva in Yu.V. Teslenko, 1982 † · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)
 Tubulosa Ulrich, 1897 † accepted as Longstaffia Cossmann, 1908 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda incertae sedis (Order) > Lophospiridae (Family)

Tuburcinia
 Tuburcinia E.M. Fries, 1832 accepted as Urocystis Rabenhorst ex Fuckel, 1870 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Urocystidiales (Order) > Urocystidaceae (Family)
 Tuburcinia Woronin, 1882 accepted as Urocystis Rabenhorst ex Fuckel, 1870 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Urocystidiales (Order) > Urocystidaceae (Family)

Tucanus
     Tucanus Cassin, 1867 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tucanus Rafinesque, 1815 accepted as Tucanus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Tucma
     Tucma Mourgues-Schurter, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Tucma P. Ravenna, 1973 accepted as Ennealophus N.E. Brown, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)

Tucumania
     Tucumania Dyar, 1925 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Tucumania Franz, 1996 accepted as Tumucania Franz, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Tudicula
 Tudicula H. Adams & A. Adams, 1864 accepted as Tudivasum Rosenberg & Petit, 1987 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)
 Tudicula Ryckholt, 1862 accepted as Tudicla Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)
 Tudicula Cossmann, 1901 accepted as Tudicla Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)

Tudora
     Tudora Baird, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiidae (Family)
 Tudora Pallary, 1912 † accepted as Tudora Pallary, 1912 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tudora Gray, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Annulariidae (Family)

Tuerckheimia
     Tuerckheimia V.F. Brotherus, 1910 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Pottiales (Order) > Pottiaceae (Family)
     Tuerckheimia Dewitz, 1881 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Tugonia
     Tugonia Gray, 1842 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Myidae (Family)
     Tugonia Récluz, 1846 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Tugurium
     Tugurium O'Dogherty, 1994 † (uncertain)· Protozoa (Kingdom) > Sarcomastigota (awaiting allocation) (Phylum) > (Class) > (Order) > Sarcomastigota (awaiting allocation) (Family)
 Tugurium P. Fischer, 1879 accepted as Onustus Swainson, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Xenophoridae (Family)

Tukalandaspis
     Tukalandaspis Lazarenko in Lazarenko & Nikiforov, 1968 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tukalandaspis Lazarenko & Datsenko, 1967 † accepted as Tukalandaspis Lazarenko & Datsenko, 1967 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tulasnea
 Tulasnea Naudin, 1844 accepted as Siphanthera Pohl ex A.P. de Candolle, 1828 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
 Tulasnea R. Wight, 1852 accepted as Dalzellia R. Wight, 1852 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Podostemaceae (Family)

Tulbaghia
 Tulbaghia Heister, 1755 accepted as Tulbaghia Heister, 1755 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
     Tulbaghia Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)
     Tulbaghia Péringuey, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Tulipa
     Tulipa Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
     Tulipa Schreibers, 1793 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)

Tuliparia
     Tuliparia Blainville, 1830 (uncertain)· Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Tuliparia Swainson, 1840 accepted as Conus Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Conidae (Family)

Tullbergia
     Tullbergia Lubbock, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Poduromorpha (Order) > Onychiuridae (Family)
 Tullbergia Lie-Pettersen, 1896 accepted as Pseudosinella Schäffer, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Entomobryomorpha (Order) > Entomobryidae (Family)

Tullgrenia
     Tullgrenia Van der Goot, 1912 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tullgrenia Mello-Leitao, 1925 accepted as Sphenochernes Turk, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Chernetidae (Family)

Tullia
 Tullia Pruvot-Fol, 1933 accepted as Aplysia Linnaeus, 1767 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Anaspidea (Order) > Aplysiidae (Family)
 Tullia Leavenworth, 1831 accepted as Pycnanthemum A. Michaux, 1803 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Tulostoma
     Tulostoma Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricaceae (Family)
 Tulostoma Nevill, 1885 † accepted as Tulotoma Haldeman, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Viviparidae (Family)

Tumidella
     Tumidella Kolosnitsyna, 1984 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Metacopida (Order) > Metacopida (awaiting allocation) (Family)
     Tumidella K. Fučíková, P.O. Lewis & L.A. Lewis, 2014 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Tumidellaceae (Family)

Tumiditarsus
 Tumiditarsus Schillhammer, 1996 accepted as Turgiditarsus Schillhammer, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Tumiditarsus Zajciw, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Tumularia
     Tumularia Robinson, 1916 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Tabulata (awaiting allocation) (Family)
     Tumularia E. Descales & L. Marvanová in L. Marvanová & E. Descals, 1987 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Tumulina
     Tumulina Repina, 1960 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Tumulina Repina, 1959 † accepted as Tumulina Repina, 1959 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tumulitermes
     Tumulitermes Sjöstedt, 1924 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Isoptera (awaiting allocation) (Family)
     Tumulitermes Holmgren, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Termitidae (Family)

Tumulus
     Tumulus Monterosato, 1888 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
 Tumulus Hull, 1973 † accepted as Veribubo Evenhuis, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Tunaria
     Tunaria Link, 1807 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Tunaria Pirán, 1957 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Tunaria Hoek, 1912 † accepted as Bistramia Hoek, 1912 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Lingulida (Order) > Obolidae (Family)
 Tunaria O. Kuntze, 1898 accepted as Cantua J. Jussieu ex Lamarck, 1785 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)
     Tunaria Benedetto, 2013 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Heterorthidae (Family)

Tunga
     Tunga Roxburgh, 1820 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Tunga Jarocki, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Tungidae (Family)

Tunica
 Tunica Hilton, 1913 accepted as Ascidia Linnaeus, 1767 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Ascidiidae (Family)
 Tunica Ludwig, 1757 accepted as Dianthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)
 Tunica F.K. Mertens & W.D.J. Koch, 1831 accepted as Petrorhagia (Seringe) Link, 1831 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Caryophyllaceae (Family)

Tunstallia
     Tunstallia V. Agnihothrudu, 1961 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Sydowiellaceae (Family)
     Tunstallia Hollingworth & Barker, 1991 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda incertae sedis (Order) > Lophospiridae (Family)

Tunstillara
     Tunstillara H. Griffits & J.M.H. Shaw, 2007 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Tunstillara J.M.H. Shaw, 2008 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tupa
 Tupa G. Don, 1834 accepted as Lobelia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
 Tupa de Buen, 1953 accepted as Odontesthes Evermann & Kendall, 1906 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Atherinidae (Family)

Tupaja
     Tupaja Berthold in Latreille, 1827 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Tupaja Haeckel, 1866 accepted as Tupaia Raffles, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Scandentia (Order) > Tupaiidae (Family)

Tupha
     Tupha S.F. Gray, 1821 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Tupha Oken, 1815 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Tuponia
     Tuponia Reuter, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Tuponia Walcott, 1920 † (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Protomonaxonida (Order) > Leptomitidae (Family)

Turania
     Turania Ragonot, 1890 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Turania Brodsky, 1925 accepted as Turaniella Corliss, 1960 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Hymenostomatida (Order) > Turaniellidae (Family)
 Turania Bethune-Baker, 1914 accepted as Turanana Bethune-Baker, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
     Turania H. Akhani & E.H. Roalson in H. Akhani, G. Edwards & E.H. Roalson, 2007 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Turbella
     Turbella Ehrenberg, 1831 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Polycystididae (Family)
 Turbella accepted as Rissoa Desmarest, 1814 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Turbina
     Turbina Koninck, 1881 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turbina Herrmannsen, 1847 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turbina Rafinesque, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)

Turbinacis
     Turbinacis Gregory, 1900 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Turbinacis Quenstedt, 1880 accepted as Turbinaria Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Dendrophylliidae (Family)

Turbinaria
     Turbinaria J.V.F. Lamouroux, 1825 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Sargassaceae (Family)
     Turbinaria Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Dendrophylliidae (Family)

Turbinella
     Turbinella Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)
     Turbinella Bory de St. Vincent, 1827 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Turbinella Millidge, 1991 accepted as Turbinellina Millidge in Platnick, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Linyphiidae (Family)
     Turbinella Duan, Cao & Zhang, 1993 † (uncertain)· Animalia (Kingdom) > Animalia incertae sedis (Phylum) > (Class) > (Order) > (Family)

Turbinellus
 Turbinellus Earle, 1909 accepted as Gomphus Persoon, 1797 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Gomphales (Order) > Gomphaceae (Family)
 Turbinellus Lamarck, 1801 accepted as Turbinella Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)

Turbinia
     Turbinia Michelin, 1845 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Serpulimorpha (Order) > Serpulimorpha (awaiting allocation) (Family)
 Turbinia Dollfus, 1919 † accepted as Turbinia Dollfus, 1919 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Turbinilla
     Turbinilla Bory de St. Vincent, 1823 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
 Turbinilla accepted as Turbinella Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turbinellidae (Family)

Turbinites
     Turbinites Dubourdieu, 1953 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Turbinites Martin, 1809 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Turbinolia
     Turbinolia Lamarck, 1816 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Turbinoliidae (Family)
     Turbinolia Rafinesque & Clifford, 1820 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Turbinolopsis
     Turbinolopsis Lamouroux, 1821 (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Turbinolopsis Ivanov, 1926 † accepted as Turbinilopsis Koninck, 1881 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Trochida (Order) > Anomphalidae (Family)

Turbinopsis
     Turbinopsis Conrad, 1860 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Turbinopsis Pcelincev, 1963 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Turbonilla
     Turbonilla Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)
 Turbonilla Leach, 1847 accepted as Onoba H. Adams & A. Adams, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)

Turborotalia
     Turborotalia Cushman & Bermúdez, 1949 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Globigerinida (Order) > Globorotaliidae (Family)
 Turborotalia Blow & Banner in Eames, Banner, Blow & Clarke, 1962 † accepted as Turborotalia Cushman & Bermúdez, 1949 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Globigerinida (Order) > Globorotaliidae (Family)

Turcica
     Turcica Böttger, 1877 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
     Turcica H. Adams & A. Adams, 1854 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > (Order) > Chilodontaidae (Family)

Turckheimia
     Turckheimia Dewitz, 1881 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Turckheimia Cambridge, 1889 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)

Turcorientalia
     Turcorientalia Schutt, 1980 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Turcorientalia Radoman, 1973 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Hydrobiidae (Family)

Turdus
     Turdus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Turdidae (Family)
 Turdus Catesby, 1771 accepted as Turdus Catesby, 1771 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)

Turgida
     Turgida Travassos, 1920 (uncertain)· Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Physalopteridae (Family)
     Turgida Schulz, 1927 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Physalopteridae (Family)

Turia
     Turia Marwick, 1927 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)
 Turia Forsskål, 1775 accepted as Luffa P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)

Turkestanella
     Turkestanella Tashiro, 1979 † accepted as Sogdianagonia Schneider & Kelly, 2019 † (junior homonym)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Megatrigoniidae (Family)
     Turkestanella Klishevich in Kuznetzov, 1969 † · Animalia (Kingdom) > Mollusca (Phylum) > Cricoconarida (Class) > Dacryoconarida (Order) > Nowakiidae (Family)
     Turkestanella Repina in Repina, Petrunina & Khairullina, 1975 † accepted as Irakimaspis Ghobadi Pour, 2011 † (junior homonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Chengkouiidae (Family)

Turkiella
     Turkiella Zumpt & Till, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)
     Turkiella Lehr, 1996 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Turkmenella
     Turkmenella Schneider in Mandel'shtam, Schneider et al., 1963 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
 Turkmenella Bugrova, 1985 accepted as Turkmenicaella Bugrova, 2001 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Vaginulinidae (Family)

Turkmenomyia
     Turkmenomyia Paramonov, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Turkmenomyia Marikovskii, 1957 accepted as Kochiomyia Mamaev, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Turnerella
     Turnerella F. Schmitz, 1897 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Furcellariaceae (Family)
     Turnerella Cockerell, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Colletidae (Family)
     Turnerella Subba Rao, 1971 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
     Turnerella Rohwer, 1910 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Thynnidae (Family)
 Turnerella Taylor & McKinney, 2006 † accepted as Pseudocriboconcha Sánchez de Posada, 2010 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Cribrilinidae (Family)

Turneria
     Turneria Forel, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
     Turneria Tutt, 1903 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Turneria Chatterjee & Small, 1989 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Plesiosauria (Order) > Cimoliasauridae (Family)
 Turneria Hedqvist, 1970 accepted as Conodipara Hedqvist, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Turneria Glibert & van de Poel, 1966 accepted as Basterotina Coan, 1999 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Basterotiidae (Family)
 Turneria Parent, 1935 accepted as Nurteria Dyte & Smith, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
     Turneria Parent, 1934 accepted as Turneria Parent, 1935 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)

Turneriella
     Turneriella Seven & Özdikmen, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Yponomeutidae (Family)
     Turneriella Levett et al., 2005 · Bacteria (Kingdom) > Spirochaetae (Phylum) > Spirochaetes (Class) > Leptospirales (Order) > Leptospiraceae (Family)

Turneriola
     Turneriola China, 1923 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
 Turneriola Leclercq, 1951 accepted as Pseudoturneria Leclercq, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)

Turpinia
 Turpinia Persoon, 1807 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Turpinia Ventenat, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Crossosomatales (Order) > Staphyleaceae (Family)
 Turpinia Bonpland in Humboldt & Bonpland, 1807 accepted as Fulcaldea Poiret, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Turpinia Lexarza, 1824 accepted as Fulcaldea Poiret, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Turquetia
     Turquetia Vélain, 1877 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Galeommatidae (Family)
     Turquetia Vélain, 1877, nom. nud. accepted as Turquetia Vélain, 1877 (nomen nudum)· Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Galeommatidae (Family)

Turquinia
     Turquinia Silhavy, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Grassatores incertae sedis (Family)
     Turquinia Coy Otero, 1989 (uncertain)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Digenea (awaiting allocation) (Order) > Digenea (awaiting allocation) (Family)

Turricula
     Turricula Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Clavatulidae (Family)
     Turricula Herrmann, 1783 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turricula Beck, 1837 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Turricula Pilsbry, 1895 accepted as Turricula Pilsbry, 1895 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)
     Turricula Macbride, 1917 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Turricula H. Adams & A. Adams, 1853 accepted as Vexillum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Costellariidae (Family)
 Turricula Fabricius, 1823 accepted as Vexillum Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Costellariidae (Family)

Turris
     Turris Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turridae (Family)
     Turris Fabricius, 1823 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turris Montfort, 1810 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turris Müller, 1766 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turris Gray, 1857 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Turris Batsch, 1789 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Turridae (Family)
 Turris Lesson, 1843 accepted as Neoturris Hartlaub, 1914 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Pandeidae (Family)

Turrispira
 Turrispira Conrad, 1866 † accepted as Clavilithes Swainson, 1840 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Fasciolariidae (Family)
     Turrispira Pethö, 1906 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Turrispira Reytlinger, 1950 † accepted as Turrispiroides Reytlinger, 1959 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Pseudoammodiscidae (Family)

Turrisporites
 Turrisporites A.A. Luber in N.A. Bolchovitina et al., 1966 † accepted as Turrisporites A.A. Luber in N.A. Bolchovitina et al., 1966 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Turrisporites A.A. Luber ex A.B. Virbitskas in S.V. Meyen, 1983 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Turrita
 Turrita Wagner, 1897 accepted as Nerita Linnaeus, 1758 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Neritidae (Family)
 Turrita Wallroth, 1822 accepted as Pseudoturritis I.A. Al-Shehbaz, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Turritella
     Turritella Lamarck, 1799 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Turritellidae (Family)
     Turritella Wollaston, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)

Turritellopsis
     Turritellopsis G.O. Sars, 1878 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Mathildidae (Family)
 Turritellopsis Rhumbler, 1904 accepted as Turritellella Rhumbler, 1904 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Ammodiscidae (Family)

Turritis
     Turritis Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Turritis Adanson, 1763 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)

Turritoma
     Turritoma Ulrich & Scofield, 1897 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
 Turritoma Bartsch, 1941 accepted as Propebela Iredale, 1918 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Mangeliidae (Family)

Tursio
 Tursio Gray, 1843 accepted as Tursiops Gervais, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Delphinidae (Family)
 Tursio Wagler, 1830 accepted as Lissodelphis Gloger, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Delphinidae (Family)
 Tursio Fleming, 1822 accepted as Physeter Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Physeteridae (Family)

Turtonia
 Turtonia Rosén, 1910 accepted as Pelseneeria Koehler & Vaney, 1908 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)
     Turtonia Alder, 1848 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Turtur
     Turtur Boddaert, 1783 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)
     Turtur Selby, 1835 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)

Turus
 Turus Gloger, 1841 accepted as Turdus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Muscicapidae (Family)
 Turus Hilzheimer in Hilzheimer & Heck, 1916 † accepted as Capra Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Tussaca
 Tussaca H.G.L. Reichenbach, 1824 accepted as Tussaca H.G.L. Reichenbach, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Tussaca Rafinesque, 1814 accepted as Goodyera R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tussacia
 Tussacia Willdenow ex J.G. Beer, 1856 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)
     Tussacia Willdenow ex J.A. Schultes & J.H. Schultes in J.J. Roemer & J.A. Schultes, 1829 (uncertain)· Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae incertae sedis (Family)
 Tussacia Bentham, 1846 accepted as Chrysothemis Decaisne, 1849 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Tutcheria
     Tutcheria Cox, 1946 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Carditidae (Family)
 Tutcheria S.T. Dunn, 1908 accepted as Pyrenaria Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Theaceae (Family)

Tutor
     Tutor Kurotchkin, 1968 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Falconiformes (Order) > Falconiformes (awaiting allocation) (Family)
     Tutor Goldfuss, 1820 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Tutor Omelko, 1988 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Tuvinia
     Tuvinia Andreyeva, 1982 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Orthidiellidae (Family)
     Tuvinia Poletaeva in Pokrovskaya, 1959 † accepted as Tuvinia Poletaeva in Pokrovskaya, 1959 † (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Tuyus
     Tuyus Fischer, 1808 accepted as Tuyus Fischer, 1808 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Tuyus Rafinesque, 1815 accepted as Tuyus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Tychea
     Tychea Koch, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Eriococcidae (Family)
     Tychea Passerini, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Tychepsephenus
 Tychepsephenus Lucas, 1920 accepted as Tychepsephus Waterhouse, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Psephenidae (Family)
 Tychepsephenus Zaitzev, 1908 accepted as Tychepsephus Waterhouse, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Psephenidae (Family)

Tychiosoma
     Tychiosoma Wollaston, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tychiosoma Voss, 1943 accepted as Tychiophaenus Voss, 1960 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Tydemania
     Tydemania Weber-van Bosse, 1901 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Udoteaceae (Family)
     Tydemania Weber, 1913 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Triacanthodidae (Family)

Tydeus
     Tydeus Koch, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)
     Tydeus Sauvage, 1870 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Tydides
     Tydides Stål, 1865 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Tydides Kuznetzov, 1975 accepted as Kuznetsovtydides André, 2021 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tydeidae (Family)

Tylanthera
     Tylanthera C. Hansen, 1990 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
     Tylanthera Cope, 1895 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Tylaspis
     Tylaspis Tizard, Moseley, Buchanan & Murray, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Parapaguridae (Family)
     Tylaspis Henderson, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Parapaguridae (Family)
     Tylaspis Munro, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Tylaspis Lévi & Lévi, 1983 accepted as Hemiasterella Carter, 1879 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Hemiasterellidae (Family)

Tylaster
     Tylaster Danielssen & Koren, 1881 · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Spinulosida (Order) > Poraniidae (Family)
 Tylaster Spencer, 1913 † accepted as Tylasteria Valette, 1930 † · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Valvatida (Order) > Goniasteridae (Family)

Tylenchodorus
     Tylenchodorus Siddiqi, 1983 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Qudsianematidae (Family)
 Tylenchodorus Gagarin, 1999 accepted as Tylenchodoroides Gagarin, 2001 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Dorylaimida (Order) > Tylencholaimidae (Family)

Tyleria
     Tyleria Parin, 1993 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathiformes (awaiting allocation) (Family)
     Tyleria Gleason, 1931 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Ochnaceae (Family)
 Tyleria H. Adams & A. Adams, 1854 accepted as Sphenia Turton, 1822 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Myidae (Family)

Tylocarpus
 Tylocarpus Kützing, 1843 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Phyllophoraceae (Family)
 Tylocarpus Engler, 1893 accepted as Medusanthera B.C. Seemann, 1864 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Aquifoliales (Order) > Stemonuraceae (Family)

Tylochilus
     Tylochilus Cossmann, 1889 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Tylochilus C.G.D. Nees, 1832 accepted as Cyrtopodium R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Tyloderma
     Tyloderma Say, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Tyloderma Miers, 1872 (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Tylodon
     Tylodon Gervais, 1848 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Creodonta (Order) > Hyaenodontidae (Family)
 Tylodon Banker, 1902 accepted as Xenotypa Petrak, 1955 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Valsaceae (Family)

Tylodrosus
 Tylodrosus Bedel, 1886 accepted as Polydrusus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tylodrosus Seidlitz, 1890 accepted as Polydrusus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tylognathus
     Tylognathus Felder, 1874 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Tylognathus Heckel in Russegger, 1843 accepted as Bangana Hamilton, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)

Tylonotus
     Tylonotus Haldeman, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Tylonotus Fieber, 1858 accepted as Plesiocoris Fieber, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
 Tylonotus Schaum, 1863 accepted as Nototylus Gemminger & Harold, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tylonyx
     Tylonyx Cook, 1899 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Geophilomorpha (Order) > Geophilidae (Family)
 Tylonyx Schulze, 1897 accepted as Dicrostonyx Gloger, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)

Tylophora
     Tylophora Dahmer, 1936 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Modiomorphoida (Order) > Modiomorphoida (awaiting allocation) (Family)
     Tylophora Simpson, 1940 (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Tylophora R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Tylophora Hick, 1892 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Lycopodiopsida (Class) > Lycopodiopsida (awaiting allocation) (Order) > Lycopodiopsida (awaiting allocation) (Family)
 Tylophora Pavesi, 1880 accepted as Castianeira Keyserling, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Corinnidae (Family)

Tylophoropsis
     Tylophoropsis Sambo, 1938 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Caliciaceae (Family)
 Tylophoropsis N.E. Brown, 1894 accepted as Tylophora R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Tylophoropsis M. Cengia, 1938 accepted as · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)

Tylopora
     Tylopora Lang, 1917 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Cheilostomatida (awaiting allocation) (Family)
 Tylopora Brook, 1893 accepted as Acropora Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Acroporidae (Family)

Tylopterus
     Tylopterus Capiomont, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Tylopterus Clarke & Ruedemann, 1912 † accepted as Tylopterella Støormer, 1951 † · Animalia (Kingdom) > Arthropoda (Phylum) > (Class) > Eurypterida (Order) > Eurypterida (awaiting allocation) (Family)
 Tylopterus Leconte, 1876 accepted as Lignyodes Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tylorhynchus
 Tylorhynchus McIntosh, 1910 accepted as Tylorrhynchus Grube, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Nereididae (Family)
 Tylorhynchus [auctt.] accepted as Tylorrhynchus Grube, 1866 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Nereididae (Family)

Tylos
 Tylos Heyden, 1826 accepted as Tylos Heyden, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Tylos Latreille in Audouin, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Isopoda (Order) > Tylidae (Family)
 Tylos Meigen, 1800 accepted as Tylos Meigen, 1800 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Micropezidae (Family)

Tylosaurus
     Tylosaurus Marsh, 1872 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Mosasauridae (Family)
 Tylosaurus Cocco, 1833 accepted as Tylosurus Cocco, 1833 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)

Tylosema
     Tylosema Kieffer, 1905 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Tylosema (Schweinfurth) Torre & Hillcoat, 1955 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Tylosoma
 Tylosoma Théel, 1875 accepted as Phascolion Théel, 1875 · Animalia (Kingdom) > Sipuncula (Phylum) > Sipuncula (awaiting allocation) (Class) > Golfingiida (Order) > Phascolionidae (Family)
 Tylosoma Koren & Daniellsen, 1875 accepted as Phascolion Théel, 1875 · Animalia (Kingdom) > Sipuncula (Phylum) > Sipuncula (awaiting allocation) (Class) > Golfingiida (Order) > Phascolionidae (Family)

Tylosperma
 Tylosperma Donk, 1957 accepted as Tylospora Donk, 1960 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Atheliales (Order) > Atheliaceae (Family)
 Tylosperma V.P. Botschantzev, 1952 accepted as Potentilla Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Tylosperma Leeuwenberg, 1958 accepted as Tylopsacas Leeuwenberg, 1960 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Tylostoma
     Tylostoma Sharpe, 1849 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Tylostomatidae (Family)
 Tylostoma Saussure, 1860 accepted as Trachops Gray, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
 Tylostoma Gervais, 1855 accepted as Tonatia Gray, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)

Tylotoma
 Tylotoma Grabau, 1934 † accepted as Spiriferellina Frédéricks, 1924 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Spiriferinidae (Family)
 Tylotoma Fischer, 1885 † accepted as Tulotoma Haldeman, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Viviparidae (Family)

Tylotus
     Tylotus J.G. Agardh, 1876 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Dicranemataceae (Family)
     Tylotus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Tylus
 Tylus Agassiz, 1846 accepted as Tylus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Tylus accepted as Micropeza Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Micropezidae (Family)

Tympanistria
 Tympanistria Reichenbach, 1852-53 accepted as Turtur Boddaert, 1783 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Columbidae (Family)
 Tympanistria Stål, 1862 accepted as Paranistria Metcalf, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadidae (Family)

Tympanophora
     Tympanophora White in Grey, 1841 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Tympanophora Lindley & W. Hutton, 1835 † accepted as Tympanophora Lindley & W. Hutton, 1835 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Cyatheales (Order) > Cyatheaceae (Family)
 Tympanophora Laboulbène, 1865 accepted as Cymbalophora Rambur, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Tympanotonus
     Tympanotonus Klein in Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Potamididae (Family)
 Tympanotonus Agassiz, 1846 accepted as Tympanotonos Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Potamididae (Family)

Tyndarichoides
 Tyndarichoides Girault, 1920 accepted as Metaphycus Mercet, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Tyndarichoides Mercet, 1921 accepted as Mahencyrtus Masi, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Tyndaris
     Tyndaris Thomson, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Tyndaris Felder, 1860 accepted as Comella Pagenstecher, 1902 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Callidulidae (Family)

Typha
     Typha Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Typhaceae (Family)
     Typha Larmarck, 1813 (uncertain)· Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Typhaeus
     Typhaeus Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
 Typhaeus Beddard, 1888 accepted as Eutyphoeus Michaelsen, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Octochaetidae (Family)

Typhis
     Typhis Risso, 1816 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Pronoidae (Family)
     Typhis Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Typhlamphiascus
     Typhlamphiascus Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)
 Typhlamphiascus Lang, 1948 accepted as Typhlamphiascus Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)

Typhlias
     Typhlias Hubbs, 1938 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Ophidiiformes (Order) > Dinematichthyidae (Family)
     Typhlias Bryce, 1910 accepted as Typhlina Ehrenberg, 1831 (misspelling)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera incertae sedis (Class) > (Order) > (Family)

Typhlina
     Typhlina Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Typhlopidae (Family)
     Typhlina Jan, 1864 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Typhlina Ehrenberg, 1831 accepted as Typhlina Ehrenberg, 1831 (taxon inquirendum)· Animalia (Kingdom) > Rotifera (Phylum) > Rotifera incertae sedis (Class) > (Order) > (Family)

Typhlochactas
     Typhlochactas Mitchell, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Typhlochactidae (Family)
     Typhlochactas Mitchell, 1969 accepted as Typhlochactas Mitchell, 1971 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Typhlochactidae (Family)

Typhlochthonius
     Typhlochthonius Balzan, 1891 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Typhlochthonius Ellingsen, 1902 accepted as Pseudochthonius Balzan, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Pseudoscorpionida (Order) > Chthoniidae (Family)

Typhlocypris
     Typhlocypris Vejdovský, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Candonidae (Family)
 Typhlocypris Vejdovský, 1880 accepted as Typhlocypris Vejdovský, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Candonidae (Family)

Typhloniscus
     Typhloniscus Schoebl, 1860 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
     Typhloniscus Salter, 1856 † (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Typhloporus
     Typhloporus Hampe, 1864 (uncertain)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Typhloporus Cameron, 1939 accepted as Drugia Blackwelder, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Typhlosipalia
 Typhlosipalia Ganglbauer, 1895 accepted as Leptusa Kraatz, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Typhlosipalia Scheerpeltz, 1951 accepted as Rhopaletes Cameron, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Typhlothrombium
     Typhlothrombium Berlese, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Tanaupodidae (Family)
 Typhlothrombium Oudemans, 1910 accepted as Gahrliepia Oudemans, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Trombiculidae (Family)

Typhlus
     Typhlus Koch in Sturm, 1828 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Typhlus Duméril, 1870 accepted as Hippichthys Bleeker, 1849 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Syngnathiformes (Order) > Syngnathidae (Family)

Typhobia
 Typhobia Moore, 1898 accepted as Tiphobia Smith, 1880 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Pleuroceridae (Family)
     Typhobia Pascoe, 1869 accepted as Platydema Laporte & Brullé, 1831 (junior subjective synonym)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Typhoeus
 Typhoeus Boucomont, 1911 accepted as Typhaeus Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)
 Typhoeus Beddard, 1883 accepted as Eutyphoeus Michaelsen, 1900 · Animalia (Kingdom) > Annelida (Phylum) > Clitellata (Class) > Haplotaxida (Order) > Octochaetidae (Family)

Typhoides
     Typhoides Morgan, 1894 (uncertain)· Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Typhoides Moench, 1794 accepted as Phalaris Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Typocephalus
 Typocephalus Hope, 1841 accepted as Cytorea Laporte, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)
     Typocephalus Chevrolat in Dejean, 1836 accepted as Typocephalus Hope, 1841 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Typodus
     Typodus Meyer, 1847 † (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Typodus Quenstedt, 1858 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Typophorus
     Typophorus Chevrolat in Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Typophorus Erichson, 1847 accepted as Typophorus Chevrolat in Dejean, 1836 (unavailable name)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Tyrannicordyceps
     Tyrannicordyceps R.M. Kepler & J.W. Spatafora, 2012 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Clavicipitaceae (Family)
 Tyrannicordyceps R.M. Kepler & J.W. Spatafora in Kepler, Sung, Harada, Tanaka, Tanaka, Hosoya, Bischoff & Spatafora, 2012 [nom. inval.] accepted as Tyrannicordyceps R.M. Kepler & J.W. Spatafora, 2012 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Clavicipitaceae (Family)

Tyrannites
     Tyrannites Berthold in Latreille, 1827 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Tyrannites Cariou, 1984 † (uncertain)· Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Tyrannus
     Tyrannus Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Tyrannus Wood & Tekbali, 1987 † · Plantae (Kingdom) > Acritarcha (Phylum) > (Class) > (Order) > (Family)

Tyreomma
     Tyreomma Wulp, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Tyreomma Brauer & Bergenstamm, 1891 accepted as Tyreomma Wulp, 1896 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Tyria
     Tyria Scheffen, 1933 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)
 Tyria Klotzsch, 1851 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericales (awaiting allocation) (Family)
     Tyria Fitzinger, 1826 (uncertain)· Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Tyria Klotzsch ex Endlicher, 1850 accepted as Bernardia P. Miller, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Tyria Ehrenberg, 1912 accepted as Serratia Bizio, 1823 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Gammaproteobacteria (Class) > Enterobacterales (Order) > Yersiniaceae (Family)
     Tyria Hübner, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Erebidae (Family)

Tyrimnus
     Tyrimnus Rafinesque, 1815 accepted as Tyrimnus Rafinesque, 1815 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Orthoptera (awaiting allocation) (Family)
     Tyrimnus (Cassini) Cassini in F. Cuvier, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Tyrmia
     Tyrmia M.I. Brik ex T.A. Sixtel, 1952 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)
 Tyrmia V.D. Prynada, 1956 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)

Tyronia
     Tyronia Rafinesque, 1814 accepted as Tyronia Rafinesque, 1814 (nomen nudum)· Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Tyronia Liebke, 1934 accepted as Crepidogaster Boheman, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tyrrellia
     Tyrrellia Koenike, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Limnesiidae (Family)
     Tyrrellia Parks, 1913 † (uncertain)· Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)

Tyrrhenia
 Tyrrhenia Paggi & Orecchia, 1975 accepted as Magnibursatus Naidenova, 1969 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Derogenidae (Family)
     Tyrrhenia Paggi & Orecchia, 1974 accepted as Tyrrhenia Paggi & Orecchia, 1975 (nomen nudum)· Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Derogenidae (Family)
 Tyrrhenia Ledoux & Roux, 2005 accepted as Nebria Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Tyrrheniella
     Tyrrheniella Riedl, 1959 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Catenulida (Order) > Tyrrheniellidae (Family)
 Tyrrheniella Giusti & Manganelli, 1989 accepted as Tyrrheniellina Giusti & Manganelli, 1992 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hygromiidae (Family)

Tyrrhenocythere
     Tyrrhenocythere Ruggieri, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Hemicytheridae (Family)
     Tyrrhenocythere Dubowsky, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Hemicytheridae (Family)

Tysonia
 Tysonia F. von Mueller, 1896 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Tysonia Fontaine, 1889 † (uncertain)· Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)
 Tysonia H. Bolus, 1890 accepted as Afrotysonia S. Rauschert, 1982 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Tyto
     Tyto Billberg, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Tytonidae (Family)
 Tyto Heine in Heine & Reichenow, 1890 accepted as Strix Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
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