Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Gnathostomata
     Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
       Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes see Infraclass Elasmobranchii Bonaparte, 1838
         Superorder Euselachii Hay, 1902 see Subclass Euselachii Hay, 1902
           Order Batoidea see Superorder Batoidea
             Suborder Torpedinoidea (Jonet, 1968) see Order Torpediniformes de Buen, 1926
               1 Family Torpedinidae Henle, 1834 - torpedo electric rays
               2 Family Narkidae Fowler, 1934 - sleeper rays
               3 Family Temeridae see Family Narcinidae Gill, 1862