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 †Placodermiomorphi [monotypic]
Class †Placodermi McCoy, 1848
Order †Ptyctodontiformes [monotypic]
Family †Ptyctodontidae Woodward, 1891
Genus †Ctenurella Ørvig, 1960