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 †Cladoselachimorpha see Superorder Cladoselachimorpha
                     1 ?Family †Cladodontidae Giebel, 1846 see Family Ctenacanthidae Bonaparte, 1850, "nom. praeval."
                     2 ?Genus †Coronodus Bryant, 1935
                     3 ?Family †Symmoriidae Dean, 1909
                     4 ?Family †Falcatidae Zangerl, 1990, "nom. praeval."
                     5 ?Family †Stethacanthidae Lund, 1974 see Family Symmoriidae Dean, 1909
                     6 Order †Cladoselachiformes [monotypic]