Acanthocephalus A. von Frantzius, 1848 (extant flag source)
Acanthocephalus A. von Frantzius, 1848 (current name source)
Acanthocephalus A. von Frantzius, 1848 (basis of record)
Acanthoepimeritus Hoshide, 1959 (basis of record)
Acanthoepimeritus Hoshide, 1959 (extant flag source)
Acanthogregarina Kalavati, Narasimhamurti & Vidyullatadevi, 1988 (extant flag source)
Acanthogregarina Kalavati, Narasimhamurti & Vidyullatadevi, 1988 (basis of record)
Acanthospora Léger, 1892 (basis of record)
Acanthospora Léger, 1892 (extant flag source)
Acanthosporidium Georgévitch, 1951 (extant flag source)
Acanthosporidium Georgévitch, 1951 (basis of record)
Acarogregarina Levine, 1977 (extant flag source)
Acarogregarina Levine, 1977 (basis of record)
Actinocephalus Stein, 1848 (extant flag source)
Actinocephalus Stein, 1848 (basis of record)
Acuta Stejskal, 1965 (basis of record)
Acuta Stejskal, 1965 (extant flag source)
Acutispora Crawley, 1903 (extant flag source)
Acutispora Crawley, 1903 (basis of record)
Adelphocystis Cox, 1967 (extant flag source)
Adelphocystis Cox, 1967 (basis of record)
Agrippina Strickland, 1912 (extant flag source)
Agrippina Strickland, 1912 (basis of record)
Aikinetocystis Gates, 1926 (basis of record)
Aikinetocystis Gates, 1926 (extant flag source)
Alaspora Obata, 1954 (extant flag source)
Alaspora Obata, 1954 (basis of record)
Albertisella Cognetti de Martiis, 1926 (extant flag source)
Albertisella Cognetti de Martiis, 1926 (basis of record)
Allantocystis Keilin, 1920 (basis of record)
Allantocystis Keilin, 1920 (extant flag source)
Amphiplatyspora Kundu & Halder, 1985 (extant flag source)
Amphiplatyspora Kundu & Halder, 1985 (basis of record)
Amphorella Léger, 1892 accepted as Amphoroides Labbé, 1899 (extant flag source)
Amphorella Léger, 1892 accepted as Amphoroides Labbé, 1899 (basis of record)
Amphorocephalus Ellis, 1913 (basis of record)
Amphorocephalus Ellis, 1913 (extant flag source)
Amphoroides Labbé, 1899 (basis of record)
Amphoroides Labbé, 1899 (extant flag source)
Anchorina Mingazzini, 1891 accepted as Ancora Labbé, 1899 (extant flag source)
Anchorina Mingazzini, 1891 accepted as Ancora Labbé, 1899 (basis of record)
Ancora Labbé, 1899 (basis of record)
Ancora Labbé, 1899 (extant flag source)
Ancorina accepted as Ancora Labbé, 1899 (extant flag source)
Ancorina accepted as Ancora Labbé, 1899 (basis of record)
Ancyrophora Léger, 1892 (extant flag source)
Ancyrophora Léger, 1892 (basis of record)
Anisoloboides Théodoridès, 1992 (extant flag source)
Anisoloboides Théodoridès, 1992 (basis of record)
Anisolobus Vincent, 1924 (extant flag source)
Anisolobus Vincent, 1924 (basis of record)
Anthocephalus Schneider, 1887 accepted as Anthorhynchus Labbé, 1899 (extant flag source)
Anthocephalus Schneider, 1887 accepted as Anthorhynchus Labbé, 1899 (basis of record)
Anthorhynchus Labbé, 1899 (basis of record)
Anthorhynchus Labbé, 1899 (extant flag source)
Apigregarina Stejskal, 1965 (extant flag source)
Apigregarina Stejskal, 1965 (basis of record)
Apolocystis Cognetti de Martiis, 1923 (basis of record)
Apolocystis Cognetti de Martiis, 1923 (extant flag source)
Arachnocystis Levine, 1979 (extant flag source)
Arachnocystis Levine, 1979 (basis of record)
Arborocystis Rees & Howell, 1966 (extant flag source)
Arborocystis Rees & Howell, 1966 (basis of record)
Ascocephalus Obata, 1954 (basis of record)
Ascocephalus Obata, 1954 (extant flag source)
Ascogregarina Ward, Levine & Craig, 1982 (extant flag source)
Ascogregarina Ward, Levine & Craig, 1982 (basis of record)
Asterophora Léger, 1892 (basis of record)
Asterophora Léger, 1892 (extant flag source)
Astrocystella Cognetti de Martiis, 1918 (basis of record)
Astrocystella Cognetti de Martiis, 1918 (extant flag source)
Beccaricystis Cognetti de Martiis, 1926 (extant flag source)
Beccaricystis Cognetti de Martiis, 1926 (basis of record)
Beloides Labbé, 1899 accepted as Pyxinia Hammerschmidt, 1838 (basis of record)
Beloides Labbé, 1899 accepted as Pyxinia Hammerschmidt, 1838 (extant flag source)
Bhatiella Setna, 1932 (basis of record)
Bhatiella Setna, 1932 (extant flag source)
Bifilida Tuzet & Ormières, 1965 (basis of record)
Bifilida Tuzet & Ormières, 1965 (extant flag source)
Bolivia Corbel, 1968 (extant flag source)
Bolivia Corbel, 1968 (basis of record)
Bothriopsides Strand, 1928 (extant flag source)
Bothriopsides Strand, 1928 (basis of record)
Bothriopsis Schneider, 1875 accepted as Bothriopsides Strand, 1928 (extant flag source)
Bothriopsis Schneider, 1875 accepted as Bothriopsides Strand, 1928 (basis of record)
Brustiospora Kundu & Haldar, 1981 (basis of record)
Brustiospora Kundu & Haldar, 1981 (extant flag source)
Bulbocephalus Watson, 1917 (extant flag source)
Bulbocephalus Watson, 1917 (basis of record)
Callynthrochlamys Frenzel, 1885 (basis of record)
Callynthrochlamys Frenzel, 1885 (extant flag source)
Campanacephalus Théodoridès, 1955 (extant flag source)
Campanacephalus Théodoridès, 1955 (basis of record)
Cardiocephalus Zwetkow, 1929 (current name source)
Cardiocephalus Zwetkow, 1929 (extant flag source)
Cardiocephalus Zwetkow, 1929 (basis of record)
Caridohabitans Ball, 1959 (extant flag source)
Caridohabitans Ball, 1959 (basis of record)
Caulocephalus Bhatia & Setna, 1924 (extant flag source)
Caulocephalus Bhatia & Setna, 1924 (basis of record)