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
         1 Canalipalpata G.W. Rouse & K. Fauchald, 1997
         2 Aciculata G.W. Rouse & K. Fauchald, 1997