organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Eumetazoa Bütschli, 1910 - eumetazoans
       Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
         Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Spiralia Schleip, 1929 - spiralians see Superphylum Spiralia Schleip, 1929
             Teloblastica (C. Nielsen, 1995) see [unranked] Protostomia Grobben, 1908
               Articulata Cuvier see [unranked] Protostomia Grobben, 1908
                 Euarticulata see [unranked] Protostomia Grobben, 1908
                   Phylum Annelida Lamarck, 1809 - segmented worms
                     "Polychaeta" see Class Polychaeta Grube, 1850
                       Pogonophora Johansson, 1937 see Family Siboglinidae Caullery, 1914
                         Class Vestimentifera see Family Siboglinidae Caullery, 1914
                           Genus Ridgeia Jones, 1985
                             Ridgeia piscesae Jones, 1985