Articulata Cuvier see [unranked] Protostomia Grobben, 1908
   Annelida Lamarck, 1809 - segmented worms see Phylum Annelida Lamarck, 1809
     Polychaeta see Class Polychaeta Grube, 1850
       Palpata G.W. Rouse & K. Fauchald, 1997
         Canalipalpata G.W. Rouse & K. Fauchald, 1997
           1 Sabellida see Order Sabellida Fauchald, 1977
           2 Terebellida see Order Terebellida Rouse & Fauchald, 1977
           3 Spionida see Order Spionida Rouse & Fauchald, 1997
           4 ?Family Polygordiidae Czerniavsky, 1881
           5 ?Family Protodrilidae Czerniavsky, 1881
           6 ?Family Protodriloididae Purschke & Jouin, 1988
           7 ?Family Saccocirridae Czerniavsky, 1881