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 Postciliodesmatophora Gerassimova & Seravin, 1976 - desmates
                                       Class Heterotrichea Stein, 1859 [monotypic]
                                         Order Heterotrichidaᵀ Stein, 1859 - heterotrichs
                                           Family Condylostomatidae Kahl, in Doflein & Reichenow, 1929
                                             1 ?Genus Dellochus Corliss, 1960
                                             2 Genus Condylostomaᵀ Bory de St. Vincent, 1826
                                             3 Genus Condylostomides da Silva Neto, 1994
                                             4 Genus Linostomella Aescht, 1999