Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade "neomura" Cavalier-Smith 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 Clade neozoa Cavalier-Smith 1993
                   Superkingdom Corticata Lankester, 1878
                     Kingdom Chromista Caval.-Sm. (1981) - chromists
                       Subkingdom Harosa Cavalier-Smith, 2010
                         Infrakingdom Rhizaria Cavalier-Smith, 2002
                           Phylum Retaria Cavalier-Smith, 2002
                             Subphylum Radiozoa Cavalier-Smith, 1987
                               Superclass Polycystinia Ehrenberg, 1838
                                 Class Stauraxonaria Afanasieva & Amon, 2005
                                   Order Spongurata Haeckel, 1862
                                     Family Litheliidae Haeckel, 1862
                                       1 Genus Cromyodruppa Haeckel, 1887
                                       2 Genus Discopyle Haeckel, 1887
                                       3 Genus Litheliusᵀ Haeckel, 1860
                                       4 Genus †Lithocarpium Stöhr, 1880
                                       5 Genus Pylospira Haeckel, 1887