Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
   Spiralia Schleip, 1929 - spiralians see Superphylum Spiralia Schleip, 1929
     Trochozoa Beklemischev, 1944 - trochozoans
       1.1 Phylum Phoronida Hatschek, 1888 - phoronids
       1.2 Phylum Brachiopoda Duméril, 1806 - brachiopods
       2.1 Phylum Entoprocta Nitsche, 1869 - entoprocts
       2.2.1 Phylum Nemertea Schultze, 1851 - ribbon worms
       2.2.2.1 Phylum Sipuncula Rafinesque, 1814 - peanut worms see Class Sipuncula
       2.2.2.2.1 Phylum Mollusca Linnaeus, 1758 - molluscs
       2.2.2.2.2.1 Phylum Pogonophora Johansson, 1937 - beard worms see Family Siboglinidae Caullery, 1914
       2.2.2.2.2.2.1 Phylum Echiura Sedgwick, 1898 - spoon worms, echiurans see Class Echiura
       2.2.2.2.2.2.2 Phylum Annelida Lamarck, 1809 - segmented worms