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 Stenophoroidea see Order Stenophorida Cavalier-Smith, 2014
                     Family Stylocephalidae Ellis, 1912
                       01 Genus Stylocephalus Ellis, 1912
                       02 Genus Stylocephaloides Théodoridès, Desportes & Jolivet, 1965
                       03 Genus Cystocephalus Schneider, 1886
                       04 Genus Bulbocephalus Watson, 1917
                       05 Genus Xiphocephalus Théodoridès, 1964
                       06 Genus Lophocephalus Labbé, 1899, nom. illeg.
                       07 Genus Lophocephaloides Théodoridès, Desportes & Jolivet, 1965
                       08 Genus Sphaerorhynchus Labbé, 1899
                       09 Genus Oocephalus Schneider, 1886
                       10 Genus Campanacephalus Théodoridès, 1955
                       11 Genus Clavicephalus Théodoridès, 1960
                       12 Genus Cystocephaloides Théodoridès & Jolivet, 1963
                       13 Genus Orbocephalus Nelson, 1970
                       14 Genus Lepismatophila Adams & Travis, 1935
                       15 Genus Colepismatophila Adams & Travis, 1935