• Abyssobairdia anisovalva Coles & Whatley, 1989 †
• Acanthoscapha (Acanthoscapha) navicula (Ulrich, 1891) † represented as Acanthoscapha navicula (Ulrich, 1891) †
• Acanthoscapha angularis (Ulrich, 1891) †
• Acanthoscapha cristata (Ulrich, 1891) † accepted as Beecherella cristata Ulrich, 1891 †
• Acanthoscapha dubia Polenova, 1970 †
• Acanthoscapha lenticulata (Stewart & Hendrix, 1945) Berdan, 1960 †
• Acanthoscapha navicula (Ulrich, 1891) †
• Acanthoscapha ovata (Ulrich, 1891) †
• Acanthoscapha subtumida (Ulrich, 1891) Bassler & Kellett, 1934 † accepted as  †
• Acanthoscapha subtumida intermedia (Ulrich, 1891) † accepted as  †
• Acanthoscapha subtumida subtumida (Ulrich, 1891) † accepted as  †
• Acratia (Acratia) minuta Blumenstengel, 1970 †
• Acratia (Cooperuna) archedensis (Tschigova, 1958) Crasquin, 1986 † (unaccepted > nomen nudum)
• Acratia (Cooperuna) rostrata (Ljaschenko, 1960) Gruendel, 1962 †
• Acratia caeracella Forel & Gradinaru, 2018 †
• Acratia deloi Geis, 1932 †
• Acratia disjuncta Morey, 1935 † accepted as Chamishaella disjuncta (Morey, 1935) Sohn, 1971 †
• Acratia disjunctus Morey, 1935 † accepted as Acratia disjuncta Morey, 1935 † accepted as Chamishaella disjuncta (Morey, 1935) Sohn, 1971 †
• Acratia fusiformis Schischkinskaja, 1959 †
• Acratia hungarica Kozur, 1985 †
• Acratia inornata Cordell, 1952 † accepted as Bohlenatia inornata (Cordell, 1952) Gruendel, 1962 †
• Acratia magna Delo, 1930 †
• Acratia posteroinclinata Kozur, 1985 †
• Acratia posthungarica Kozur, 1985 †
• Acratia recurvata Cordell, 1952 †
• Acratia schreteri Kozur, 1985 †
• Acratia typica Delo, 1930 †
• Acratia visnyoensis Kozur, 1985 †
• Acratia visnyoensis praecursor Kozur, 1985 †
• Acratia visnyoensis visnyoensis Kozur, 1985 †
• Acratina gusevae Kozur, 1985 †
• Acratina suprapermiana Kozur, 1985 †
• Acutiangulata acutiangulata (Posner, 1960) † accepted as  †
• Acutiangulata arrecta Bushmina, 1968 †
• Acutiangulata asulensis Ivanova, 1980 †
• Acutiangulata insolens Bushmina, 1977 †
• Acutiangulata rara Bushmina, 1968 †
• Acutiangulata tumefacta Bushmina, 1979 †
• Alanella lenticulata (Stewart & Hendrix, 1945) Kesling & Sohn, 1958 † accepted as Acanthoscapha lenticulata (Stewart & Hendrix, 1945) Berdan, 1960 †
• Anchistrocheles acerosa (Brady, 1868) Brady & Norman, 1889
• Anchistrocheles aculeata Müller, 1908 accepted as Bythopussella aculeata (Müller, 1908)
• Anchistrocheles angulata (Brady, 1870) accepted as Orlovibairdia angulata (Brady, 1870)
• Anchistrocheles antemacella Maddocks, 1969
• Anchistrocheles arcaforma Swanson, 1979 accepted as Orlovibairdia arcaforma (Swanson, 1979)
• Anchistrocheles barnharti Maddocks, 1976
• Anchistrocheles bensoni Maddocks, 1969
• Anchistrocheles bradyi Scott, 1905
• Anchistrocheles brandtae (Brandão, 2008) accepted as Bythopussella brandtae Brandão, 2008
• Anchistrocheles darwini Maddocks & Iliffe, 1991
• Anchistrocheles eximia Herrig, 1993 †
• Anchistrocheles fumata Brady, 1890
• Anchistrocheles hartmanni Maddocks, 1976
• Anchistrocheles mcquadei Maddocks, 1976
• Anchistrocheles praebensoni Warne, 1990 †
• Anchistrocheles seguenzai Sciuto & Pugliese, 2013
• Anchistrocheles shinyangriensis Lee, 1990
• Anchistrocheles tenera (Breman, 1975)
• Anchistrocheles yamaguchii Yajima, 1987 †
• Aponesidea ifatyensis Maddocks, 1991
• Aponesidea iliffei Maddocks in Maddocks & Iliffe, 1986
• Aponesidea problematica (Hartmann, 1974)
• Aponesidea tanegashimensis Zhou, 1995
• Araxobairdia formosa Gliwa in Gliwa, Forel, Crasquin, Ghaderi & Korn, 2020 †
• Bairdia (Bairdia) curta M'Coy, 1844 † represented as Bairdia curta M'Coy, 1844 †
• Bairdia (Bairdia) curtus M'Coy, 1844 † accepted as Bairdia curta M'Coy, 1844 †
• Bairdia (Bairdia) nabashensis Scott & Borger, 1941 †
• Bairdia (Cryptobairdia) gibbera (Morey, 1935) † (unaccepted > nomen nudum)
• Bairdia (Fabalicypris) acetalata (Coryell & Billings, 1932) Gorak, 1967 †
• Bairdia (Fabalicypris) hoxbarensis (Harlton, 1927) Gorak, 1967 † accepted as Bairdiacypris hoxbarensis (Harlton, 1927) †
• Bairdia (Fabalicypris) wileyensis (Cooper, 1946) Gorak, 1967 †
• Bairdia (Neonesidea) mutsuensis Ishizaki, 1971 accepted as Neonesidea mutsuensis Ishizaki, 1971
• Bairdia (Orthobairdia) kirki (Sohn, 1960) Crasquin, 1986 † (unaccepted > nomen nudum)
• Bairdia (Orthobairdia) kirki (Sohn, 1960) Crasquin-Soleau, 1989 †
• Bairdia (Orthobairdia) oklahomaensis (Harlton, 1927) Crasquin, 1983 †
• Bairdia (Rectobairdia) fragosa (Morey, 1935) Becker, 1965 †
• Bairdia (Rectobairdia) subvexa (Coryell & Billings, 1932) Crasquin, 1986 † (unaccepted > nomen nudum)
• Bairdia (Rectobairdia) subvexa (Coryell & Billings, 1932) Crasquin-Soleau, 1988 † accepted as Rectobairdia subvexa (Coryell & Billings, 1932) †
• Bairdia abyssicola Brady, 1880 accepted as Bythocypris abyssicola (Brady, 1880)
• Bairdia acanthigera Brady, 1867 (unaccepted > nomen nudum)
• Bairdia acanthigera Brady, 1868 accepted as Neonesidea acanthigera (Brady, 1868)
• Bairdia acetalata Coryell & Billings, 1932 † accepted as Bairdiacypris acetalata (Coryell & Billings, 1932) †
• Bairdia aculeata Cooper, 1941 † (unaccepted > nomen nudum)
• Bairdia acuminata (Alth, 1850) Reuss, 1854 † accepted as Monoceratina acuminata (Alth, 1850) †
• Bairdia acuminata Cooper, 1946 †
• Bairdia acuticauda Veen, 1934 † accepted as Bairdoppilata acuticauda (Veen, 1934) †
• Bairdia acuticauda acuticauda Veen, 1934 † accepted as Bairdoppilata acuticauda acuticauda (Veen, 1934) †
• Bairdia affinis Brady, 1886 accepted as Bythocypris affinis (Brady, 1886)
• Bairdia affinis Morris, 1845
• Bairdia affinis Terquem, 1885 †
• Bairdia africana Chapman, 1916 † accepted as Bairdoppilata africana (Chapman, 1916) †
• Bairdia amygdaloides Brady, 1880 accepted as Neonesidea amygdaloides (Brady, 1880)
• Bairdia andrecrasquini Crasquin, Sciuto, Reitano & Coco, 2020 †
• Bairdia angulata Brady, 1870 accepted as Orlovibairdia angulata (Brady, 1870)
• Bairdia angulata Coryell & Sample, 1932 † accepted as Bairdia pennata Coryell & Sample, 1933 †
• Bairdia angulata Posner, 1951 † accepted as Rectobairdia posneri Sohn, 1960 †
• Bairdia angusta Sars, 1866 accepted as Macrocypria sarsi (Müller, 1912)
• Bairdia antillea Bold, 1946 † accepted as Bairdoppilata antillea (van den Bold, 1946) †
• Bairdia arcuata (M'Coy, 1844) Bassler & Kellett, 1934 †
• Bairdia arcuata (Muenster, 1830) Bosquet, 1852 accepted as accepted as
• Bairdia arostrata Kornicker, 1961 accepted as Paranesidea arostrata (Kornicker, 1961)