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 Discoba Simpson 2009
                       Superphylum Discicristata Cavalier-Smith, 1998 [coordinate rank]
                         Phylum Euglenozoa Cavalier-Smith, 1981
                           Class Euglenoidea Bütschli, 1884
                             ?Genus Conradnema
                             ?Genus Dinema J.A.M. Perty, 1852
                             ?Genus Dinemula Michajlow, 1965
                             ?Genus Embryocola Michajlow, 1969
                             ?Genus Mesastasia Palienko & Monchenko, 1979
                             ?Genus Mononema Michajlow, 1967
                             ?Genus Naupliicola Michajlow, 1965
                             ?Genus Ovicola Michajlow, 1965
                             ?Genus Paradinemula Monchenko, 1967
                             ?Genus Paradistigma Wita, 1974
                             ?Genus Paradistigmoides Michajlow & Wita, 1976
                             ?Genus Parastasia nom. illeg.
                             ?Genus Parastasiella Michajlow, 1965
                             1 Order Petalomonadida Cavalier-Smith, 1993
                             2 Order Peranemida Bütschli, 1884
                             3 Order Rhabdomonadida Leedale, 1967
                             4 Order Euglenidaᵀ Bütschli, 1884 - euglenids