Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           Clade neomura T. Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria T. Cavalier-Smith, 2022(2021)
                 Clade natates T. Cavalier-Smith, 2022(2021)
                   Clade photaria T. Cavalier-Smith, 2022(2021)
                     Clade eucorta T. Cavalier-Smith, 2022(2021)
                       Superkingdom Corticata (Lankester, 1878) T. Cavalier-Smith, in T. Cavalier-Smith et al., 2015 - corticates
                         Kingdom Chromista T. Cavalier-Smith, 1981, nom. descript. - chromists
                           Subkingdom Harosa T. Cavalier-Smith, 2010
                             [crown] Clade Sar S.M. Adl et al., 2012 [A.G.B. Simpson & M. Dunthorn, 2020]
                               Infrakingdom Rhizaria T. Cavalier-Smith, 2002
                                 Phylum Retaria T. Cavalier-Smith, 2002
                                   Subphylum Radiozoa (T. Cavalier-Smith, 1987)
                                     Superclass Polycystinia (Ehrenberg, 1838)
                                       Class Nassellaria Ehrenberg, 1847
                                         Order Cyrtidinata Haeckel, 1862
                                           Superfamily Archipilioidea Haeckel, 1881
                                             Family Archipiliidaeᵀ Haeckel, 1881
                                               Subfamily Sethopiliinae Haeckel, 1881
                                                 Genus Plectacantha Jørgensen, 1905
                                                   Plectacantha oikiskos Jørgensen, 1905