IRMNG Taxon list
Acanthometopus Lu & Qian, 1983 †
Acanthopleurella Groom, 1902 †
Acerocare Angelin, 1854 †
Acerocare ecorne Angelin, 1854 †
Acerocarina Poulsen, 1951 †
Acheilops Ulrich, 1931 †
Achlysopsis † (uncertain )
Achlysopsis liokata (Fritz, 1968) †
Aciculolenus Palmer, 1965 † (uncertain )
Acrocephalaspis Ivshin, 1953 †
Acrocephalaspis orientalis Lazarenko, 1966 †
Acrocephalella Rozova, 1963 †
Acrocephalella granulosa Rozova, 1963 †
Acrocephalina Troedsson, 1937 †
Acrocephalina acuta Troedsoon, 1937 †
Acrocephalina armata Troedsoon, 1937 †
Acrocephalina borealica Lazarenko, 1960 †
Acrocephalites Wallerius, 1895 †
Acrocephalites haynesi Shaw, 1962 †
Acrocephalites rarus Westergard, 1922 †
Acrocephalites redivivus †
Acrocephalites reductus †
Acrocephalites stenometopa (Angelin, 1851) †
Acrocephalites stenometopus †
Acrocephalites vigilans Resser & Walcott, 1924 †
Acrocephalitidae †
Acrocephalops Poulsen, 1927 †
Acrocephalops gibber Poulsen, 1927 †
Acrodirotes Öpik, 1967 †
Adelogonus Öpik, 1967 †
Aedotes Öpik, 1967 †
Afghanocare Wolfart, 1975 †
Agasella Lermontova & Chernysheva, 1950 † (uncertain )
Agasella falcata Chernysheva & Lermontova, 1950 †
Agelagma Öpik, 1967 †
Agralos Vogdes, 1917 † accepted as Agraulos Hawle & Corda, 1847 †
Agraulidae †
Agraulopsis Růžička, 1940 †
Agraulos Hawle & Corda, 1847 †
Agraulos abrota †
Agraulos ceticephalus (Barrande, 1846) †
Agraulos difformis †
Agraulos dirce †
Agraulos dolon †
Agraulos dryas †
Agraulos humilis Cobbold, 1934 †
Agraulos nitida †
Agraulos obscura †
Agraulos robustus Cobbold, 1934 †
Agraulos seleupis †
Agraulos sorge Walcott, 1911 †
Agraulos uta †
Agraulos vicina †
Aiaiaspis Nazarov, 1973 †
Alanisia Hupé in Piveteau, 1953, nom. nud. † accepted as Alanisia Hupé, 1953 †
Alanisia Hupé, 1953 †
Alanisia guillermoi (Richter & Richter, 1940) †
Albansia Howell, 1937 †
Alceste Hawle & Corda, 1847 †
Aldanaspis Lermontova, 1940 †
Aldanaspis enodata †
Aldanaspis punctatus Lermontova, 1940 †
Aldanaspis recta Lazarenko, 1965 †
Aldanaspis venusta Lazarenko †
Aldonaia Lermontova, 1940 †
Aldonaia alaskensis †
Aldonaia ornata Lermontova, 1951 †
Aldonaia pokrovskae †
Aldonaia tersa Surorova, 1960 †
Alekcinella Ivshin, 1962 †
Alimbetaspis Balashova, 1961 † (uncertain )
Alimbetaspis kelleri Balashova, 1961 †
Alokistocare Lorenz, 1906 †
Alokistocare althea †
Alokistocare australe Poulsen, 1958 †
Alokistocare laticaudatum Resser †
Alokistocare mexicana Poulsen, 1958 †
Alokistocare piochensis †
Alokistocare salairica Poletaeva †
Alokistocare subcoronatum (Hall & Whitfield, 1877) †
Alokistocarella Resser, 1938 †
Alokistocarella typicalis Resser, 1938 †
Alokistocaridae Resser, 1939 †
Altiocculus Sundbe, 1994 †
Amblycranium Ross, 1951 †
Amecephalina Poulsen, 1927 †
Amecephalina mirabilis Poulsen, 1927 †
Amecephalites Eddy & McCollum, 1998 †
Amecephaloides Repina in Repina, Khomentovskii et al., 1964 † (uncertain )
Amecephaloides solontzensis Repina, 1964 †
Amecephalus Walcott, 1924 †
Amecephalus cormoranus †
Amecephalus mendozanus †
Amecephalus piochensis (Walcott, 1886) †
Amiaspis Lochman in Lochman & Duncan, 1944 †
Amicus Koroleva, 1967 †
Amphorella † (uncertain )
Amplicephalus Stitt, 1970 † accepted as Magnacephalus Stitt, 1971 †
Amquia Rasetti, 1946 †
Amzasskiella Poletaeva, 1960 †