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 Discoba Simpson 2009
                       Superphylum Discicristata Cavalier-Smith, 1998 [coordinate rank]
                         Phylum Euglenozoa Cavalier-Smith, 1981
                           Class Euglenoidea Bütschli, 1884
                             Order Rhabdomonadida Leedale, 1967
                               Genus Distigma Ehrenberg, 1831
                               Genus Gyropaigne Skuja, 1939
                               Genus Menoidium Perty, 1852
                               Genus Parmidium H.R. Christen, 1963
                               Genus Rhabdomonas Fresenius, 1858
                               Genus Rhabdospira Pringsheim, 1963