Abadehella Okimura & Ishii, 1975 † (basis of record)
Abathomphalinae Pessagno, 1967 † (basis of record)
Abathomphalus Bolli, Loeblich & Tappan, 1957 † (basis of record)
Abditodentrix Patterson, 1985 (additional source)
Abditodentrix pseudothalmanni (Boltovskoy & Guissani de Kahn, 1981) (new combination reference)
Abriolina Luperto, 1964 † (status source)
Abyssamina Schnitker & Tjalsma, 1980 † (basis of record)
Acarinina Subbotina, 1953 † (basis of record)
Acervoschwagerina Hanzawa, 1949 † (basis of record)
Acervulina Schultze, 1854 (additional source)
Acervulinidae Schultze, 1854 (additional source)
Acervulinoidea Schultze, 1854 (additional source)
Acostina Bermúdez, 1949 (basis of record)
Actinosiphon Vaughan, 1929 † (basis of record)
Adelosina d'Orbigny, 1826 (additional source)
Adelosina bicornis (Walker & Jacob, 1798) (new combination reference)
Adrahentina Bilotte, 1978 † (basis of record)
Aeolomorphella Loeblich & Tappan, 1964 † (basis of record)
Aeolostreptis Loeblich & Tappan, 1957 † (basis of record)
Affinetrina Łuczkowska, 1972 (additional source)
Afghanella Thompson, 1946 † (basis of record)
Afrobolivina Reyment, 1959 † (basis of record)
Agathammina Neumayr, 1887 † (additional source)
Agglutinella El-Nakhal, 1983 (additional source)
Akiyoshiella Toriyama, 1953 † (basis of record)
Aktinorbitoides Brönnimann, 1958 † (basis of record)
Alabamina Toulmin, 1941 (additional source)
Alabaminella Saidova, 1975 (additional source)
Alabaminidae Hofker, 1951 (additional source)
Alabaminoides Gudina & Saidova, 1967 (additional source)
Alanwoodia Loeblich & Tappan, 1955 (additional source)
Alexanderina McCulloch, 1977 (additional source)
Alfredina Singh & Kalia, 1972 † (basis of record)
Alfredosilvestris Andersen, 1961 (additional source)
Allanhancockia McCulloch, 1977 (basis of record)
Alliatina Troelsen, 1954 (additional source)
Alliatinella Carter, 1957 (additional source)
Alliatininae McGowran, 1966 (basis of record)
Allogromia Rhumbler, 1904 (additional source)
Allogromiida (additional source)
Allogromiidae Rhumbler, 1904 (additional source)
Allogromiinae Rhumbler, 1904 (basis of record)
Allomorphina Reuss in Cžjžek, 1849 (additional source)
Allomorphinella Cushman, 1927 † (additional source)
Almaena Samoilova, 1940 † (basis of record)
Almaenidae Myatlyuk, 1959 (additional source)
Almaeninae Myatlyuk, 1959 † (basis of record)
Alpinophragmium Flügel, 1967 † (basis of record)
Altasterella Seiglie, 1965 † (basis of record)
Altinerina Zaninetti, Ciarapica, Decrouez & Miconnet, 1984 † (basis of record)
Altinerininae Zaninetti, Ciarapica, Decrouez & Miconnet, 1984 † (basis of record)
Altistoma de Klasz & Rérat, 1962 † (basis of record)
Alveolina d'Orbigny, 1826 † (additional source)
Alveolinella H. Douvillé, 1907 (additional source)
Alveolinidae Ehrenberg, 1839 (additional source)
Alveolinoidea Ehrenberg, 1839 (additional source)
Alveolophragmiinae Saidova, 1981 (basis of record)
Alveovalvulina Brönnimann, 1951 † (basis of record)
Ambitropus Lipps, 1965 (basis of record)
Ammoelphidiella Conato & Segre, 1974 † (basis of record)
Ammomassilina Cushman, 1933 (additional source)
Ammonia Brünnich, 1771 (additional source)
Ammoniinae Saidova, 1981 (basis of record)
Ammoscalaria Höglund, 1947 (additional source)
Ammosiphonia He, 1977 † (basis of record)
Ammosphaeroidininae Cushman, 1927 (basis of record)
Ammosphaerulina Cushman, 1912 (additional source)
Ammotrochoides Janin, 1984 (additional source)
Amphicoryna Schlumberger in Milne-Edwards, 1881 (additional source)
Amphimorphina Neugeboren, 1850 † (additional source)
Amphisorus Ehrenberg, 1839 (additional source)
Amphistegina d'Orbigny, 1826 (additional source)
Amphisteginidae Cushman, 1927 (additional source)
Anaticinella Eicher, 1973 † (basis of record)
Anchihauerina McCulloch, 1977 (basis of record)
Andrejella Malakhova, 1975 † (basis of record)
Androsina Lévy, 1977 (additional source)
Angotia Cuvillier, 1963 † (basis of record)
Angulodiscorbis Uchio, 1952 (additional source)
Angulodiscus Kristan, 1957 † (basis of record)
Angulogavelinella Hofker, 1957 † (basis of record)
Angulogerina Cushman, 1927 accepted as Trifarina Cushman, 1923 (additional source)
Angulogerininae Galloway, 1933 (basis of record)
Annulocibicides Cushman & Ponton, 1932 (additional source)
Annulocibicidinae Saidova, 1981 (basis of record)
Annulofrondicularia Keijzer, 1945 † (basis of record)
Annulopatellina Parr & Collins, 1930 (additional source)
Annulopatellinidae Loeblich & Tappan, 1964 (additional source)
Annulopatellinoidea Loeblich & Tappan, 1964 (additional source)
Anomalinella Cushman, 1927 (additional source)
Anomalinellinae Saidova, 1981 (basis of record)
Anomalinoides Brotzen, 1942 (additional source)
Anomalinulla Saidova, 1975 (additional source)
Antarcticella Loeblich & Tappan, 1987 † (original description)
Anticleina Saidova, 1975 (additional source)
Anturina Jones, 1984 (basis of record)
Apertauroria Sabirov, 1984 † (basis of record)
Apogromia De Saedeleer, 1934 (additional source)
Apterrinella Cushman & Waters, 1928 † (basis of record)
Aragonia Finlay, 1939 † (basis of record)