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 Batomorphi - rays
                       Order Myliobatiformes Compagno, 1973 - stingrays
                         Suborder Myliobatoidei Compagno, 1973 see Order Myliobatiformes Compagno, 1973
                           1 Family Zanobatidae Fowler, 1934 - panrays
                           2 Family Plesiobatidae Nishida, 1990 - deepwater stingrays
                           3 Family Urolophidae Müller & Henle, 1841 - round stingrays
                           4 Family Hexatrygonidae Heemstra & Smith, 1980 - sixgill stingrays
                           5 Family Dasyatidae Jordan & Gilbert, 1879 - whiptail stingrays
                           6 Family Potamotrygonidae Garman, 1877 - neotropical stingrays
                           7 Family Gymnuridae Fowler, 1934 - butterfly rays
                           8 Family Urotrygonidae McEachran, Dunn & Miyake, 1996 - American round stingrays
                           9 Family Myliobatidae Bonaparte, 1835 - eagle rays