Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
       1 Genus †Pipiscius Bardack & Richardson, 1977, incertae sedis
       2.1 Genus †Gilpichthys Bardack & Richardson, 1977, incertae sedis
       2.2 Superclass Myxinomorphi [monotypic]
       3.1 [plesion] Genus †Myllokunmingia Shu et al., 1999
       3.1.0 [[plesion] Genus †Haikouichthys Luo, Hu & Shu, 1999] see Genus Myllokunmingia Shu et al., 1999
       3.2 Vertebrata (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812