Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                             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
                                       Class Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans
                                         Subclass Peritrichia Stein, 1859
                                           Order Sessilida Kahl, 1933
                                             Family Vaginicolidae de Fromentel, 1874
                                               ?Genus Cyclodonta Matthes, 1958
                                               Genus Cothurnia Ehrenberg, 1832
                                               Genus Pachytrocha Kent, 1882
                                               Genus Cothurniopsis Stokes, 1893
                                               Genus Pseudothuricola Kahl, 1935
                                               Genus Pyxicola Kent, 1882
                                               Genus Caulicola Stokes, 1894
                                               Genus Thuricola Kent, 1881
                                               Genus Vaginicolaᵀ Lamarck, 1816
                                               Genus Platycola Kent, 1882
                                                 Platycola decumbensᵀ (Ehrenberg, 1830) Kent, 1882
                                                 Platycola truncata Fromentel, 1874