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
         Aciculata G.W. Rouse & K. Fauchald, 1997
           1 Phyllodocida see Order Phyllodocida Dales, 1962
           2 Eunicida see Order Eunicida Ushakov, 1955
           3 ?Family Aberrantidae Wolf, 1987
           4 ?Family Nerillidae Levinsen, 1883
           5 ?Family Spintheridae Augener, 1913