[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Eucoelomata see Superphylum Eucoelomata
             Phylum Annelida Lamarck, 1809 - segmented worms
               Class Polychaeta Grube, 1850 - polychaetes
                 Subclass Sedentaria (Lamarck, 1818)
                   Genus Arenicola Lamarck, 1801
                   Genus Chaetopterus Cuvier, 1830
                   Genus Cirratulus Lamarck, 1818
                   Genus Hydroides Gunnerus, 1768
                   Genus Sabellaria Savigny, 1818
                   Genus Serpula Linnaeus, 1758
                   Genus Spirorbis Daudin, 1800