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 Coccidia Leuckart, 1879
               Order Protococcidiida Kheisin, 1956 see Order Coelotrophiida Vivier, 1982
                 Family Grelliidae Levine, 1973
                   1 Genus Grellia Levine, 1973
                   2 Genus Coelotropha Henneré, 1963
                   3 Genus Myriospora Lermantoff, 1913
                   4 Genus Myriosporides Henneré, 1966
                   5 Genus Defretinella Hennere, 1966
                   6 Genus Mackinnonia Janiszewska, 1963