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
                           [Subphylum Plicostoma Patterson, 1988 ex T. Cavalier-Smith, 1998] see 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