Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Superkingdom Eukarya Chatton, 1925] see Domain Eukaryota Chatton, 1925
             [Kingdom Protoctista Hogg, 1860]
               [Phylum Rhizopoda Dujardin, 1835 - rhizopods] see Phylum Cercozoa Cavalier-Smith, 1998
                 [Class Filosea Leidy, 1879 - filose amebas]
                   [Subclass Cristidiscoidia Page, 1987] see Class Cristidiscoidea Page, 1987