Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Infraphylum Vertebrata Lamarck, 1801 - vertebrates
         Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
           Eugnathostomata
             Grade Chondrichthyomorphi [monotypic]
               Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
                 Subclass Euselachii Hay, 1902 - sharks, rays, and related fossils
                   Infraclass Elasmobranchii Bonaparte, 1838
                     Division Selachii - sharks
                       Superorder Galeomorphi Compagno, 1973
                         1 Order †Synechodontiformes Duffin & Ward, 1993
                         2 Order Heterodontiformes Compagno, 1973 - bullhead sharks
                         3.1 Order Orectolobiformes Compagno, 1973 - carpet sharks
                         3.2.1 Order Lamniformes Berg, 1958 - mackerel sharks
                         3.2.2 Order Carcharhiniformes Compagno, 1973 - ground sharks