Superphylum Deuterostomia Grobben, 1908 - deuterostomes
see Infrakingdom Deuterostomia Grobben, 1908
Phylum Chordata Bateson, 1885 - chordates
Subphylum Craniata auct.
see Subphylum Vertebrata Cuvier, 1812
Vertebrata (Lamarck, 1801) - vertebrates
see Subphylum Vertebrata Cuvier, 1812
Myopterygii - myopterygians
Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
Grade Chondrichthiomorphi
Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
Subclass Holocephali Bonaparte, 1832
Superorder Holocephalimorpha (Lund, 1986)
?Order †Copodontiformes Obruchev, 1953 [monotypic]
Family †Copodontidae Davis, 1883
1 Genus †Copodus Davis, 1883