Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
   Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
     Chordonia Haeckel, 1874 see Phylum Chordata Bateson, 1885
       1 Phylum Cephalochordata Owen, 1846 see Subphylum Cephalochordata Owen, 1846
       2.1 Phylum Urochordata (Lankester, 1877) see Subphylum Tunicata Lamarck, 1816
       2.2 Phylum Craniata Linnaeus, 1758 see Subphylum Vertebrata Cuvier, 1812