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 Lobosa Carpenter, 1861 see Infraphylum Lobosa Carpenter, 1861
                 Subclass Gymnamoeba see [unranked] Gymnamoebae
                   Order Schizopyrenida Singh, 1952
                     Family Vahlkampfiidae Jollos, 1917
                       1 Genus Vahlkampfia Chatton & LaLung-Bonnaire, 1912
                       2 Genus Heteramoeba Droop, 1962
                       3 Genus Naegleria Aléxéieff, 1912
                       4 Genus Paratetramitus J.F. Darbyshire et al., 1976
                       5 Genus Tetramitus Perty, 1852