Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818 Class Rhizopoda see Phylum Rhizopoda Dujardin, 1835 Order Testacea Genus [Centropyxis] Stein, 1857 1 Centropyxis aculeata Ehrenberg, 1838