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]
           neomura Cavalier-Smith, 1987
             Eukaryota Chatton, 1925 - eukaryotes
               discaria Cavalier-Smith, 2021
                 natates Cavalier-Smith, 2021
                   photaria Cavalier-Smith, 2021
                     eucorta Cavalier-Smith, 2021
                       [node-based clade] Corticata Lankester, 1878 - corticates
                         Chromista Caval.-Sm. (1981) - chromists
                           Harosa Cavalier-Smith, 2010
                             [crown clade] Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Rhizaria Cavalier-Smith, 2002
                                 Retaria Cavalier-Smith, 2002
                                   Radiozoa Cavalier-Smith, 1987
                                     Polycystinia Ehrenberg, 1838
                                       [Polycystinea Ehrenberg, 1838 - polycystines] see Superclass Polycystinia Ehrenberg, 1838
                                         [Spumellaria Ehrenberg, 1875] see Class Spumellaria Ehrenberg, 1875
                                           [Collodaria Haeckel, 1881] see Order Collodaria Haeckel, 1881
                                             3.2 ["Siphonsphaera" nom. null.] see Genus Siphonosphaera Müller, 1858