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 Euglenidaᵀ Bütschli, 1884 - euglenids
                                 Suborder Sphenomonadina Leedale, 1967
                                   Genus Anisonema Dujardin, 1841
                                   Genus Atraktomonas Christen, 1962
                                   Genus Dolium Larsen & Patterson, 1990, nom. illeg. [monotypic]
                                   Genus Dylakosoma Skuja, 1964
                                   Genus Metanema Klebs, 1892, nom. illeg.
                                   Genus Notosolenus Stokes, 1884
                                   Genus Scytomonas Stein, 1878
                                   Genus Sphenomonasᵀ Stein, 1878
                                   Genus Tropidoscyphus Stein, 1878