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
                               ?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