Kingdom Protozoa Goldfuss, 1818 - protozoa Subkingdom Neozoa Cavalier-Smith, 1993 see Kingdom Protozoa Goldfuss, 1818 Infrakingdom Neomonada Cavalier-Smith, 1997 Phylum Neomonada Cavalier-Smith, 1997 Subphylum Isomita Cavalier-Smith, 1997