Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Vertebrata Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
         Myopterygii Janvier, 1978 - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Chondrichthiomorphi see Grade Chondrichthyomorphi
               Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
                 Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes see Infraclass Elasmobranchii Bonaparte, 1838
                   Infraclass Euselachii Hay, 1902 - sharks and rays, and related fossils see Subclass Euselachii Hay, 1902
                     Division Neoselachii Compagno, 1977 see Infraclass Elasmobranchii Bonaparte, 1838
                       Subdivision Selachii - sharks see Division Selachii
                         Superorder Squalomorphi
                           Order Squaliformes Compagno, 1973 - dogfish sharks
                             1 Family Squalidae Blainville, 1816 - dogfish sharks
                             2 Family Centrophoridae Bleeker, 1859 - gulper sharks
                             3 Family Etmopteridae Fowler, 1934 - lantern sharks
                             4 Family Somniosidae Jordan, 1888 - sleeper sharks
                             5 Family Oxynotidae Gill, 1863 [monotypic] - rough sharks
                             6 Family Dalatiidae Gray, 1851 - kitefin sharks