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 Litostomatea Small & Lynn, 1981
                                         Subclass Haptoria Corliss, 1974
                                           Order Pleurostomatida Schewiakoff, 1896
                                             Family Litonotidae Kent, 1882
                                               Genus Litonotusᵀ Wrzesniowski, 1870
                                                 Litonotus antarcticus W. Song & N. Wilbert, 2002
                                                 Litonotus cygnusᵀ (O.F. Müller, 1773) Foissner, Berger, Blatterer & Kohmann, 1995
                                                 Litonotus emmerichi Petz, Song & Wilbert, 1995
                                                 Litonotus lamella sensu Fryd-Versavel et al., 1975
                                                 Litonotus obtus
                                                 Litonotus varsaviensis (Wrzesniowski, 1866) Wrzesniowski, 1870
                                                 Litonotus yeanae