bilaterians Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
   Spiralia Schleip, 1929 - spiralians see Superphylum Spiralia Schleip, 1929
     Lophotrochozoa Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 - lophotrochozoans
       Trochozoa Beklemischev, 1944 - trochozoans
         Annelida Lamarck, 1809 - segmented worms see Phylum Annelida Lamarck, 1809