organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     flagellated protists
       Phylum Euglenozoa Cavalier-Smith, 1981
         Class Euglenoidea Bütschli, 1884
           Order Euglenida Bütschli, 1884 - euglenids
             Suborder Heteronematina Leedale, 1967
               1 Genus Heteronema Dujardin, 1841
               2 Genus Peranema F. Dujardin, 1841
               3 Genus Urceolus K.S. Mereschkowski, 1877
               4 Genus Entosiphon F. Stein, 1878
               5 Genus Ploeotia Dujardin, 1841