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 discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Chromista Caval.-Sm. (1981) - chromists
                           Subkingdom Harosa Cavalier-Smith, 2010
                             [crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Rhizaria Cavalier-Smith, 2002
                                 Phylum Retaria Cavalier-Smith, 2002
                                   Subphylum Radiozoa Cavalier-Smith, 1987
                                     Superclass Polycystinia Ehrenberg, 1838
                                       Class Nassellaria Ehrenberg, 1847
                                         Order Cyrtidinata Haeckel, 1862
                                           Superfamily Amphipyndacioidea Riedel, 1967
                                             Family Amphipyndacidaeᵀ Riedel, 1967
                                               01 Genus †Amphipternis Foreman, 1973
                                               02 Genus †Amphipyndaxᵀ Foreman, 1966
                                               03 Genus †Palinandromeda Pessagno, Blome & Hull, 1993
                                               04 Genus †Parvifavus Takemura, 1986
                                               05 Genus †Protostichocapsa Empson-Morin, 1982
                                               06 Genus †Triversus Takemura, 1986, nom. illeg.
                                               07 Genus Sticholagena Haeckel, 1887
                                               08.1 Genus Stichophormium Haeckel, 1887
                                               08.2 Genus Cyrtolagena Haeckel, 1887
                                               09 Genus Stichophormis Haeckel, 1881