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 Chondrostei Müller, 1844 see Subclass Chondrostei Müller, 1844
             Order †Luganoiiformes Lehman, 1958
               1 Family †Luganoiidae Brough, 1939
               2 Family †Habroichtyidae Carroll, 1988, nom. null.
               3 Family †Thoracopteridae Griffith, 1977