Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Class Osteichthyes Huxley, 1880 [paraphyletic] - bony fishes see [unranked] Euteleostomi
         Subclass Actinopterygii Woodward, 1891 - ray-finned fishes see Class Actinopterygii Woodward, 1891
           Infraclass Neopterygii Regan, 1923 see Subclass Neopterygii Regan, 1923
             1 Order Lepisosteiformes Hay, 1929 [monotypic] - gars
             2 Order †Semionotiformes Aramboug & Bertin, 1958 [monotypic]
             3 Order †Pycnodontiformes Berg, 1937 [monotypic]
             4 Order †Macrosemiiformes
             5 Order Amiiformes Hay, 1829 - bowfins
             6 Order †Pachycormiformes Berg, 1940 [monotypic]
             7 Order †Aspidorhynchiformes Bleeker, 1859 [monotypic]
             8 Division Teleostei Müller, 1845 see Infraclass Teleostei Müller, 1845