Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     1 Subphylum Urochordata Bateson, 1885 - tunicates
     2.1 Subphylum Cephalochordata Owen, 1846 - lancelets
     2.2.1 Subphylum Conodontophorida Eichenberg, 1930
     2.2.2 Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812