Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Gnathostomata
     Teleostomi Bonaparte, 1836
       Class Osteichthyes Huxley, 1880 [paraphyletic] - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
         Subclass Actinopterygii Woodward, 1891 - ray-finned fishes see Class Actinopterygii Woodward, 1891
           Infraclass Neopterygii Regan, 1923 see Subclass Neopterygii Regan, 1923
             Division Teleostei Müller, 1845
               Subdivision Euteleostei Greenwood et al., 1966 see Cohort Euteleostei Greenwood et al., 1966
                 Order Salmoniformes Bleeker, 1859 - trout, salmon, and whitefish
                   Suborder Argentinoidei Bertelsen, 1958 see Order Argentiniformes Johnson & Patterson, 1996
                     Family Opisthoproctidae Schmidt, 1918 - spookfishes