[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 Rhinopristiformes Naylor, Caira, Jensen, Rosana, Straube & Lakner, 2012
                   1 Family Trygonorrhinidae Last, Séret & Naylor, 2016 - fiddler rays
                   2 Family Rhinobatidae Bonaparte, 1835 - guitarfishes
                   3 Family Rhinidae Müller & Henle, 1841 - bowmouth guitarfishes
                   4 Family Glaucostegidae Last, Séret & Naylor, 2016 - giant guitarfishes
                   5 Family Pristidae Bonaparte, 1835 - sawfishes