Phylum Chordata Bateson, 1885 - chordates
Count: -
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
  Count: -
     Pisces
    Count: [*] 5c58o469f; †4c41o87f
       Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
      Count: -
         Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes see Infraclass Elasmobranchii Bonaparte, 1838
        Count: [*] 12o42f; †6o2f
           Order Rajiformes Berg, 1940 - skates
          Count: -
             Family Rhinobatidae Bonaparte, 1835 - guitarfishes
            Count: -