Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Gnathostomata
     1 Class †Placodermi McCoy, 1848
     2.1 Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
     2.2 Teleostomi Bonaparte, 1836