Acanthocythereis Howe, 1963 (basis of record)
Acanthocythereis ascolii (Puri, 1963) † (basis of record)
Acanthocythereis dunelmensis (Norman, 1865) accepted as Actinocythereis dunelmensis (Norman, 1865) (basis of record)
Acanthocythereis hystrix (Reuss, 1850) Sissingh, 1972 † (basis of record)
Acanthocythereis ornata (Müller, 1894) (basis of record)
Acetabulastoma Schornikov, 1970 (basis of record)
Acetabulastoma hyperboreum (Scott, 1899) (basis of record)
Aglaiocypris Sylvester-Bradley, 1947 (basis of record)
Alacia Poulsen, 1973 (basis of record)
Alacia alata (Müller, 1906) (basis of record)
Alacia valdiviae (Müller, 1906) (basis of record)
Angulorostrum Kornicker, 1981 (basis of record)
Angulorostrum segonzaci Kornicker, 1981 (basis of record)
Archiconchoecia Müller, 1894 (basis of record)
Archiconchoecia bispicula Deevey, 1978 accepted as Archiconchoecetta bispicula (Deevey, 1978) (basis of record)
Archiconchoecia cucullata (Brady, 1902) (basis of record)
Archiconchoecia cucullata cucullata (Brady, 1902) (basis of record)
Archiconchoecia falcata Deevey, 1978 (basis of record)
Archiconchoecia gastrodes Deevey, 1978 (basis of record)
Archiconchoecia pilosa Deevey, 1978 (basis of record)
Archiconchoecia striata Müller G. W., 1894 (basis of record)
Archiconchoecia ventricosa Müller G. W., 1906 accepted as Archiconchoecetta ventricosa (Müller, G. W., 1906) (basis of record)
Archiconchoecia versicula Deevey, 1978 accepted as Archiconchoecilla versicula (Deevey, 1978) (basis of record)
Argilloecia Sars, 1866 (basis of record)
Argilloecia bulbifera Müller, 1894 (basis of record)
Argilloecia caudata Müller, 1894 (basis of record)
Argilloecia conoidea Sars, 1923 (basis of record)
Argilloecia cylindrica Sars, 1866 (basis of record)
Argilloecia levis Müller, 1894 (basis of record)
Argilloecia minor Müller, 1894 (basis of record)
Argilloecia propinqua Brady, 1904 (basis of record)
Argilloecia robusta Bonaduce, Ciampo & Masoli, 1976 (basis of record)
Aspidoconcha De Vos, 1953 (basis of record)
Aspidoconcha humilis (Brady & Norman, 1889) Mckenzie, 1972 (basis of record)
Aspidoconcha limnoriae de Vos, 1953 (basis of record)
Asterope Philippi, 1840 accepted as Cylindroleberis Brady, 1867 (basis of record)
Asterope abyssicola Sars, 1869 accepted as Prionotoleberis abyssicola (Sars, 1869) (basis of record)
Asterope mariae (Baird, 1850) accepted as Cylindroleberis mariae (Baird, 1850) (basis of record)
Aurila Pokorny, 1955 (basis of record)
Aurila convexa (Baird, 1850) (basis of record)
Aurila glyptica Barbeito-Gonzalez, 1971 (basis of record)
Aurila interpretis Uliczny, 1969 † (basis of record)
Aurila prasina Barbeito-Gonzalez, 1971 (basis of record)
Aurila punctata (Muenster, 1830) represented as  (basis of record)
Aurila speyeri (Brady, 1868) (basis of record)
Aurila woutersi Horne, 1986 (basis of record)
Azygocypridina Sylvester-Bradley, 1950 (basis of record)
Azygocypridina imperialis (Stebbing, 1901) (basis of record)
Baffinicythere Hazel, 1967 (basis of record)
Baffinicythere howei (Hazel, 1967) Hazel, 1967 (basis of record)
Bairdiidae Sars, 1865 (basis of record)
Bairdioidea Sars, 1888 (basis of record)
Basslerites Teichert, 1937 † (basis of record)
Basslerites berchoni (Brady, 1870) (basis of record)
Basslerites teres (Brady, 1869) (basis of record)
Bathyconchoecia Deevey, 1968 (basis of record)
Bathyconchoecia arctica Angel, 1976 (basis of record)
Bathyconchoecia caini Ellis, 1989 (basis of record)
Bathyconchoecia darcythompsoni (Scott, 1909) accepted as Scottoecia darcythompsoni (Scott, 1909) (basis of record)
Bathyconchoecia diacantha Deevey, 1975 (basis of record)
Bathyconchoecia galerita Deevey, 1968 (basis of record)
Bathyconchoecia hardingae Deevey, 1975 (basis of record)
Bathyconchoecia kornickeri Deevey, 1968 (basis of record)
Bathyconchoecia laqueata Deevey, 1968 (basis of record)
Bathyconchoecia latrostris Poulsen, 1972 (basis of record)
Bathyconchoecia longispinata Ellis, 1987 (basis of record)
Bathyconchoecia nodosa Poulsen, 1972 (basis of record)
Bathyconchoecia paulula Deevey, 1968 (basis of record)
Bathyconchoecia sagittarius Deevey, 1968 (basis of record)
Bathynocythere Malz & Jellinek, 1994 (basis of record)
Bathynocythere styx Malz & Jellinek, 1994 (basis of record)
Boroecia Poulsen, 1973 (basis of record)
Boroecia borealis (Sars, 1866) (basis of record)
Boroecia maxima (Brady & Norman, 1896) (basis of record)
Bosquetina Keij, 1957 † (basis of record)
Bosquetina carinella (Reuss, 1850) Ruggieri, 1962 † (basis of record)
Bosquetina dentata (Müller, 1894) (basis of record)
Bosquetina pectinata (Bosquet, 1852) Keij, 1957 † (basis of record)
Buntonia Howe, 1935 † (basis of record)
Buntonia dertonensis (Ruggieri, 1954) Ciampo, 1972 † (basis of record)
Buntonia giesbrechti (Müller, 1894) (basis of record)
Buntonia sublatissima (Neviani, 1906) Ruggieri, 1954 † (basis of record)
Buntonia textilis Bonaduce, Ciampo & Masoli, 1976 (basis of record)
Bythoceratina Hornibrook, 1952 (basis of record)
Bythoceratina reticulata Bonaduce, Ciampo & Masoli, 1976 (basis of record)
Bythocyprididae Maddocks, 1969 (basis of record)
Bythocypris Brady, 1880 (basis of record)
Bythocypris bosquetiana (Brady, 1866) Brady & Norman, 1889 (basis of record)
Bythocypris obtusata (Sars, 1866) (basis of record)
Bythocythere Sars, 1866 (basis of record)
Bythocythere bradleyi Athersuch, Horne & Whittaker, 1983 (basis of record)
Bythocythere bradyi Sars, 1926 (basis of record)
Bythocythere constricta Sars, 1866 (basis of record)
Bythocythere dromedaria Sars, 1866 (basis of record)
Bythocythere intermedia Elofson, 1938 (basis of record)
Bythocythere minima Bonaduce, Ciampo & Masoli, 1976 (basis of record)
Bythocythere robinsoni Athersuch, Horne & Whittaker, 1983 (basis of record)
Bythocythere turgida Sars, 1866 (basis of record)
Bythocythere zetlandica Athersuch, Horne & Whittaker, 1983 (basis of record)
Bythocytheridae Sars, 1926 (basis of record)