Acanthocephalorhynchoides Kostylev, 1941 accepted as Pallisentis Van Cleave, 1928 (basis of record)
Acanthocephalorhynchoides Kostylev, 1941 accepted as Pallisentis Van Cleave, 1928 (name verified source)
Acantholoma Stål, 1867 accepted as Acantholomidea Sailer, 1945 (source of synonymy)
Acanthopathes Opresko, 2004 (name verified source)
Acanthopathes Opresko, 2004 (basis of record)
Acanthosquilla multifasciata (Wood-Mason, 1895) (current name source)
Achroschizocarpus accepted as Smelowskia C.A. Meyer ex Ledebour, 1830 (source of synonymy)
Aequoureidae (habitat flag source)
Aequoureidae (extant flag source)
Æthiopoctines Thomson, 1868 accepted as Aegomorphus Haldeman, 1847 (name verified source)
Aethiopoctines Thomson, 1868 accepted as Aegomorphus Haldeman, 1847 (source of synonymy)
Æthiopoctines Thomson, 1868 accepted as Aegomorphus Haldeman, 1847 (source of synonymy)
Aleurodamaeidae Paschoal & Johnston, 1984 (extant flag source)
Allienacanthomysis accepted as Alienacanthomysis Holmquist, 1981 (source of synonymy)
Amerobelbidae Grandjean, 1954 (extant flag source)
Amerobelbidae Grandjean, 1954 (basis of record)
Ametroproctidae Subías, 2004 (basis of record)
Ametroproctidae Subías, 2004 (extant flag source)
Amphilepidae accepted as Amphilepididae Matsumoto, 1915 (source of synonymy)
Ampulicidae Shuckard, 1840 (extant flag source)
Anærea Mulsant, 1839 accepted as Saperda Fabricius, 1775 (source of synonymy)
Anærea Mulsant, 1839 accepted as Saperda Fabricius, 1775 (name verified source)
Anaerea Mulsant, 1839 accepted as Saperda Fabricius, 1775 (source of synonymy)
Anopetia Simon, 1919 (habitat flag source)
Anopetia Simon, 1919 (extant flag source)
Antelientomidae Yin, 1996 (basis of record)
Antigomonas accepted as Antygomonas Nebelsick, 1990 (source of synonymy)
Antigomonas incomitata Nebelsick, 1990 accepted as Antygomonas incomitata Nebelsick, 1990 (source of synonymy)
Antigomonidae accepted as Antygomonidae Adrianov & Malakhov, 1994 (source of synonymy)
Anuropoda Bacescu, 1980 accepted as Parapseudes Sars, 1882 (extant flag source)
Aplodontiidae Brandt, 1855 (current name source)
Arborichthoniidae Balogh & Balogh, 1992 (extant flag source)
Arborichthoniidae Balogh & Balogh, 1992 (basis of record)
Arceremaeidae Balogh, 1972 (extant flag source)
Aribatidae Aoki, Takaku & Ito, 1994 (extant flag source)
Aribatidae Aoki, Takaku & Ito, 1994 (basis of record)
Ateleopidae Kaup, 1858 accepted as Ateleopodidae Bonaparte, 1850 (source of synonymy)
Aulacoctena Mortensen, 1932 (current name source)
Aulopodidae accepted as Aulopidae Bonaparte, 1831 (source of synonymy)
Basilinna Boie, 1831 accepted as Hylocharis Boie, 1831 (source of synonymy)
Beilschneidia accepted as Beilschmiedia C.G.D. Nees in Wallich, 1831 (source of synonymy)
Blepharhymenus Solier in Gay, 1849 (current name source)
Brachypteridae Erichson, 1845 accepted as Kateretidae Kirby, 1837 (extant flag source)
Brachypteridae Erichson, 1845 accepted as Kateretidae Kirby, 1837 (basis of record)
Brooksiella Vockeroth, 1987 (name verified source)
Brooksiella Vockeroth, 1987 (current name source)
Brooksiella Vockeroth, 1987 (verified source for family)
Brysonima accepted as Byrsonima L.C. Richard ex Kunth in Humboldt, Bonpland & Kunth, 1822 (source of synonymy)
Bulbilis C.S. Rafinesque ex Kuntze, 1891 accepted as Bouteloua Lagasca, 1805 (name verified source)
Cænoptera Thomson, 1859 represented as Caenoptera Thomson, 1859 accepted as Molorchus Fabricius, 1792 (name verified source)
Cænoptera Thomson, 1859 represented as Caenoptera Thomson, 1859 accepted as Molorchus Fabricius, 1792 (source of synonymy)
Caleremaeidae Grandjean, 1965 (basis of record)
Caleremaeidae Grandjean, 1965 (extant flag source)
Caloppiidae Balogh, 1961 accepted as Zetorchellidae Özdikmen, 2008 (basis of record)
Carabocepheidae Mahunka, 1986 (basis of record)
Carabocepheidae Mahunka, 1986 (extant flag source)
Caryolophora accepted as Pentaglottis Tausch, 1829 (source of synonymy)
Centurus aurifrons accepted as Melanerpes aurifrons (Wagler, 1829) (source of synonymy)
Centurus carolinus accepted as Melanerpes carolinus (Linnaeus, 1758) (source of synonymy)
Centurus uropygialis accepted as Melanerpes uropygialis (Baird, 1854) (source of synonymy)
Ceratokalummidae Balogh, 1970 (extant flag source)
Ceratokalummidae Balogh, 1970 (basis of record)
Ceratoppiidae Kunst, 1971 (basis of record)
Ceratoppiidae Kunst, 1971 (extant flag source)
Chaetabraeus Portevin, 1929 (basis of record)
Chaetabraeus Portevin, 1929 (name verified source)
Chlorura chlorurus (Audubon, 1839) accepted as Pipilo chlorurus (Audubon, 1839) (source of synonymy)
Clylismia accepted as Chylismia (Nuttall ex Torrey & A. Gray) Raimann in Engler & Prantl, 1893 (source of synonymy)
Cobanocytheridae Schornikov, 1975 (basis of record)
Collaspidae Haeckel, 1880 accepted as Collaspididae Haeckel, 1880 (basis of record)
Collaspidae Haeckel, 1880 accepted as Collaspididae Haeckel, 1880 (source of synonymy)
Craniellidae accepted as Tetillidae Sollas, 1886 (source of synonymy)
Cucubertia accepted as Cucurbita Linnaeus, 1753 (source of synonymy)
Daubayliidae Chitwood & Chitwood, 1934 accepted as Myolaimidae Goodey, 1963 (basis of record)
Daycatinca Argaman, 1986 (verified source for family)
Dicroglossidae Anderson, 1871 (basis of record)
Diphyes Cuvier, 1817 (basis of record)
Drymobatidae J. Balogh & P. Balogh, 1984 (basis of record)
Eccoptarthridae Arnoldi, 1977 † accepted as Nemonychidae Bedel, 1882 (basis of record)
Epactozetidae Grandjean, 1930 (basis of record)
Eripaa Dubois, 1992 (verified source for family)
Erycinidae Deshayes, 1850 accepted as Lasaeidae Gray, 1842 (source of synonymy)
Erythrina Brehm, 1828 accepted as Carpodacus Kaup, 1829 (source of synonymy)
Erythrina erythrina (Pallas, 1770) accepted as Carpodacus erythrinus (Pallas, 1770) (source of synonymy)
Galumnellidae Piffl, 1970 (basis of record)
Garypinidae Daday, 1889 (basis of record)
Gastrochoena Spengler, 1783 accepted as Gastrochaena Spengler, 1783 (basis of record)
Granuloppiidae Balogh, 1983 (basis of record)
Gyrotheca Salisbury, 1812 accepted as Lachnanthes S. Elliott, 1816 (source of synonymy)
Haloscias E.M. Fries, 1846 accepted as Ligusticum Linnaeus, 1753 (source of synonymy)
Hanuala Kirkaldy, 1905 accepted as Leptodictya Stål, 1873 (source of synonymy)
Hesperentomidae Price, 1960 (basis of record)
Hesperoscordium J.G. Baker, 1870 accepted as Muilla S. Watson, 1879 (source of synonymy)
Heterogynaidae Nagy, 1969 (basis of record)
Idiozetidae Aoki, 1976 (basis of record)
Isopteryx Pictet, 1841 accepted as Chloroperla Newman, 1836 (source of synonymy)
Juniperis accepted as Juniperus Linnaeus, 1753 (source of synonymy)
Lamellareidae Balogh, 1972 (basis of record)
Leptacmæops Casey, 1913 accepted as Cortodera Mulsant, 1863 (source of synonymy)
Leptacmaeops Casey, 1913 accepted as Cortodera Mulsant, 1863 (source of synonymy)