[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
         Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
           Subclass Euselachii Hay, 1902 - sharks, rays, and related fossils
             Infraclass Elasmobranchii Bonaparte, 1838
               Division Batomorphi - rays
                 Order Rajiformes Berg, 1940 - skates
                   1 Family †Cyclobatidae Jaekel, 1911
                   2 Family †Hypsobatidae Cappetta, 1992
                   3 Family †Parapalaeobatidae Cappetta, 1992
                   4 Family Rajidae Blainville, 1816 - hardnose skates
                   5 Family Anacanthobatidae von Bonde & Swart, 1923 - legskates
                   6 Family Crurirajidae Hulley, 1972
                   7 Family Arhynchobatidae Fowler, 1934 - softnose skates
                   8 Family Gurgesiellidae Buen, 1959 - pygmy skates