[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Protista (Haeckel, 1866) - protists
     Phylum Protozoa (Goldfuss, 1818) C.T. von Siebold, 1854 see Kingdom Protozoa Goldfuss, 1818
       Subphylum Sporozoa Leuckart, 1879 see Superclass Sporozoa Leuckart, 1879
         Class Telosporea
           Genus Gregarina Dufour, 1828
           Genus Monocystis Stein, 1848
           Genus Ophryocystis Schneider, 1883
           1 Suborder Eimeriina see Suborder Eimeriorina Léger, 1911
           2 Suborder Haemosporiina see Suborder Haemosporina