Kingdom Protozoa Goldfuss, 1818 - protozoa Subkingdom Corticata Lankester, 1878 see Subkingdom Biciliata Infrakingdom Excavata T. Cavalier-Smith, 2002 see Supergroup Excavata Cavalier-Smith, 2002 1 Superphylum Eozoa Cavalier-Smith, 1997 see Infrakingdom Eozoa Cavalier-Smith, 1997 2 Superphylum Discicristata Cavalier-Smith, 1998