Kingdom Protozoa Goldfuss, 1818 - protozoa Subkingdom Corticata Lankester, 1878 see Subkingdom Biciliata Infrakingdom Alveolata Cavalier-Smith, 1991 see [unranked] Alveolata Cavalier-Smith, 1991 Genus Theileria Bettencourt, Franca & Borges, 1907 1 Theileria parva (Theiler, 1904) Bettencourt, Franca & Borges, 1907