Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   1 [stem] Phylum †Vetulicolia Shu, Conway Morris, Han, Chen, Zhang, Zhang, Liu, Li & Liu, 2001
   2.1.1 hemichordates Bateson, 1885 - hemichordates
   2.1.2 echinoderms Bruguière, 1789 - echinoderms
   2.1.3 Genus Xenoturbella E. Westblad, 1949
   2.2 Phylum Chordata Bateson, 1885 - chordates