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 Polychaeta Grube, 1850 - polychaetes
             Order Phyllodocida Dales, 1962
               Superfamily Nereididacea see Suborder Nereidiformia
                 Family Hesionidae Grube, 1850
                   1 Genus Leocrates Kinberg, 1866
                   2 Genus Microphthalmus Mecznikow, 1865
                   3 Genus Hesionides Friedrich, 1937