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 Platyhelminthes Gegenbaur, 1859 - flatworms
           Class Turbellaria Ehrenberg, 1831 - planarians see Subphylum Turbellaria Ehrenberg, 1831
             Order Neorhabdocoela see Order Rhabdocoela Ehrenberg, 1831
               Suborder Kalyptorhynchia Graff, 1905 see Order Kalyptorhynchia Graff, 1905
                 Section Schizorhynchia Meixner, 1928
                   1 Family Schizorhynchidae Graff, 1905
                   2 Family Karkinorhynchidae Meixner, 1928
                   3 Family Diascorhynchidae Meixner, 1929
                   4 Family Nematorhynchidae Schilke, 1969