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 Elasmobranchii Bonaparte, 1838 - shark-like fishes
                   Infraclass Euselachii Hay, 1902 - sharks and rays, and related fossils
                     Division Neoselachii Compagno, 1977
                       Subdivision Selachii - sharks
                         Superorder Galeomorphi (Compagno, 1973)
                           Order Carcharhiniformes Compagno, 1973 - ground sharks
                             Family Scyliorhinidae Gill, 1862 - cat sharks
                               01 Genus Apristurus Garman, 1913
                               02 Genus Asymbolus Whitley, 1939
                               03 Genus Atelomycterus Garman, 1913
                               04 Genus Aulohalaelurus Fowler, 1934
                               05 Genus Bythaelurus Compagno, 1988
                               06 Genus Cephaloscyllium Gill, 1861
                               07 Genus Cephalurus Bigelow & Schroeder, 1941 [monotypic]
                               08 Genus Galeus Rafinesque, 1810
                               09 Genus Halaelurus Gill, 1862
                               10 Genus Haploblepharus Garman, 1913 - shysharks
                               11 Genus Holohalaelurus Fowler, 1934
                               12 Genus Parmaturus Garman, 1906
                               13 Genus Pentanchus Smith & Radcliffe, 1912 [monotypic]
                               14 Genus Poroderma Smith, 1838 - barbelled catsharks
                               15 Genus Schroederichthys Springer, 1966
                               16 Genus Scyliorhinus Blainville, 1816