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 Nemertea Schultze, 1851 - ribbon worms
           Class Enopla Schultze, 1851
             Order Hoplonemertea Hubrecht, 1879
               Suborder Monostilifera Brinkmann, 1917
                 Family Prosorhochmidae Bürger, 1895
                   Genus Oerstedia Quatrefages, 1846
                     1 Oerstedia dorsalis (Abildgaard)
                     2 ?Oerstedia maculata sensu Quatrefages, 1846
                     3 ?Oerstedia venusta Iwata, 1954
                     4 ?Oerstedia polyorbis Iwata, 1954
                     5 ?Oerstedia nigra (Riches, 1893)
                     6 ?Oerstedia immutabilis (Riches, 1893)
                     7 ?Oerstedia rustica (Joubin, 1890)