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
           Phyllodocida see Order Phyllodocida Dales, 1962
             01.1.1.1.1 Family Acoetidae Kinberg, 1856
             01.1.1.1.2 Family Aphroditidae Malmgren, 1867
             01.1.1.2 Family Eulepethidae Chamberlin, 1919
             01.1.1.3 Family Polynoidae Kinberg, 1856
             01.1.2 Family Sigalionidae Kinberg, 1856
             01.2 Family Pholoidae Kinberg, 1858
             02.1 Family Chrysopetalidae E. Ehlers, 1864
             02.2.1.1.1.1.1.1.1.1.1 Family Glyceridae Grube, 1850
             02.2.1.1.1.1.1.1.1.1.2 Family Goniadidae Kinberg, 1866
             02.2.1.1.1.1.1.1.1.2 Family Paralacydoniidae Pettibone, 1963
             02.2.1.1.1.1.1.1.2 Family Pisionidae Ehlers, 1901
             02.2.1.1.1.1.1.2.1 Family Lacydoniidae Bergström, 1914
             02.2.1.1.1.1.1.2.2 Family Phyllodocidae Ørsted, 1843
             02.2.1.1.1.1.2 Family Nephtyidae Grube, 1850
             02.2.1.1.1.2 Family Nereididae Johnston, 1865
             02.2.1.1.2 Family Hesionidae Grube, 1850
             02.2.1.2.1 Family Pilargidae de Saint-Joseph, 1895
             02.2.1.2.2 Family Sphaerodoridae Malmgren, 1867
             02.2.2 Family Syllidae Grube, 1850
             03 Family Alciopidae Ehlers, 1864
             04 Family Ichthyotomidae Eisig, 1906
             05 Family Iospilidae Bergström, 1914
             06 Family Lopadorhynchidae Claparède, 1868 see Family Lopadorrhynchidae Claparède, 1868
             07 Family Myzostomidae
             08 Family Nautillienellidae nom. null. see Family Nautiliniellidae Miura & Laubier, 1990
             09 Family Pontodoridae Bergström, 1914
             10 Family Typhloscolecidae Uljanin, 1878
             11 Family Tomopteridae Johnston, 1865