Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Superclass Pisces Linnaeus, 1758 - fishes
               Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
                 Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes
                   Order Rajiformes Berg, 1940 - skates
                     Suborder Myliobatoidei Compagno, 1973
                       1 Family Dasyatidae Jordan, 1888 - stingrays
                       2 Family Urolophidae Müller & Henle, 1841 - round stingrays
                       3 Family Potamotrygonidae Garman, 1877 - river stingrays
                       4 Family Gymnuridae Fowler, 1934 - butterfly rays
                       5 Family Myliobatidae Bonaparte, 1835
                       6 Family Mobulidae Gill, 1893 see Subfamily Mobulinae (Gill, 1893)