living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Apicomplexa Levine, 1970 see Infraphylum Apicomplexa Levine, 1970
           Class Sporozoa Leuckart, 1879 see Class Sporozoea
             Subclass Gregarinia see Subclass Gregarinasina Dufour, 1828
               Order Eugregarinida Léger, 1899 see Order Eugregarinorida Léger, 1900
                 Suborder Cephalina see Suborder Septatorina Lankester, 1885
                   Superfamily Gregarinoidea Labbé, 1899
                     Family Gregarinidae Labbé, 1899
                       01 Genus Gregarina Dufour, 1828
                       02 Genus Gymnospora Moniez, 1886
                       03 Genus Triseptata Hoshide, 1958
                       04 Genus Gamocystis Schneider, 1875
                       05 Genus Anisolobus Vincent, 1924
                       06 Genus Garnhamia Crusz, 1957
                       07 Genus Torogregarina Geus, 1969
                       08 Genus Faucispora Baudoin, 1967
                       09 Genus Spinispora Baudoin, 1967
                       10 Genus Bolivia Corbel, 1968
                       11 Genus Degiustia Levine, 1979 see Genus Gregarina Dufour, 1828
                       12 Genus Cirrigregarina Levine, 1979
                       13 Genus Molluskocystis Levine, 1979