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 Halvaria Cavalier-Smith, 2010
                                 Superphylum Alveolata Cavalier-Smith, 1991
                                   Phylum Ciliophora Doflein, 1901 - ciliates
                                     Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
                                       [Superclass Spirotricha Bütschli, 1889] see Class Spirotrichea Bütschli, 1889
                                         [Class Hypotrichea Stein, 1859] see Subclass Hypotrichia (Stein, 1859) Cavalier-Smith, 1993
                                           [Order Hypotrichidaᵀ Stein, 1859 - hypotrichs] see Subclass Hypotrichia (Stein, 1859) Cavalier-Smith, 1993
                                             [Suborder Stichotrichina Fauré-Fremiet, 1961] see Order Stichotrichida Fauré-Fremiet, 1961
                                               [Family Holostichidae Fauré-Fremiet, 1961] see Family Urostylidae Bütschli, 1889
                                                 Genus Amphisia Sterki, 1878
                                                 Genus Balladina Roux, 1899
                                                 Genus Balladinella Stiller, 1974
                                                 Genus Kahliella auct., Tucolesco, 1962
                                                 [Genus Keranopsis] see Genus Keronopsis Penard, 1922
                                                 [Genus Laurentia Dragesco, 1966, nom. illeg.] see Genus Laurentiella Dragesco & Njiné, 1972
                                                 Genus Plagiotricha Kent, 1882
                                                 Genus Platytrichotus Stokes, 1886
                                                 Genus Stichochaeta auct., Cohn, 1866
                                                 Genus Trichotaxis Stokes, 1891