living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Annelida Lamarck, 1809 - segmented worms
           Class Oligochaeta Grube, 1850 - oligochaetes see [unranked] oligochaetous Clitellata
             Order Haplotaxida
               Suborder Tubificina see Order Tubificida
                 Superfamily Enchytraeoidea see Suborder Enchytraeina
                   Family Enchytraeidae Vejdovský, 1879
                     1 Genus Grania Southern, 1913
                     2 Genus Propappus Michaelsen, 1905, nom. illeg.
                     3 Genus Achaeta Vejdovský, 1877