Kingdom Protozoa Goldfuss, 1818 - protozoa Subkingdom Gymnomyxa (Lankester, 1878) Cavalier-Smith, 2002 see Kingdom Protozoa Goldfuss, 1818 Infrakingdom Rhizaria Cavalier-Smith, 2002 Phylum Cercozoa Cavalier-Smith, 1998 Subphylum Endomyxa T. Cavalier-Smith, 2002 Class Phytomyxea Engler & Prantl, 1897 Genus Spongospora Brunchors, 1887