[life] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925
     Kingdom Protozoa Goldfuss, 1818 - protozoa
       Subkingdom Biciliata
         Infrakingdom Alveolata Cavalier-Smith, 1991 see [unranked] Alveolata Cavalier-Smith, 1991
           Phylum Myzozoa Cavalier-Smith & Chao, 2004 see Subphylum Myzozoa Cavalier-Smith & Chao, 2004
             Subphylum Apicomplexa Levine, 1970 see Infraphylum Apicomplexa Levine, 1970
               Class Gregarinea Bütschli, 1882 see Subclass Gregarinasina Dufour, 1828
                 Order Eugregarinida Léger, 1899 see Order Eugregarinorida Léger, 1900