living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Sarcomastigophora Honigberg & Balamuth, 1963
           Subphylum Sarcodina - amebas
             Superclass Rhizopoda - rhizopodans see Phylum Rhizopoda Dujardin, 1835
               Class Eumycetozoa Zopf, 1884 see Parvphylum Mycetozoa de Bary, 1859 ex Rostafiński, 1873
                 Subclass Protostelia Olive, 1970 see Class Protostelea Alexopoulos & Mims, 1979
                   Order Protosteliida Olive & Stoianovitch, 1966 see Order Protostelida Olive & Stoianovitch, 1966
                     Family Protosteliidae Olive, 1962
                       Genus Nematostelium Olive & Stoianovitch, 1970
                         Nematostelium ovatum (L.S. Olive & Stoian.) L.S. Olive & Stoian., 1970