[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
         Class Osteichthyes Huxley, 1880 - 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 Actinopteri Cope, 1871 see Class Actinopteri Cope, 1871
               Superdivision Neopterygii Regan, 1923 see Subclass Neopterygii Regan, 1923
                 Superdivision Teleosteomorpha Arratia, 2001 see Infraclass Teleosteomorpha Arratia, 2001
                   Division Teleostei Müller, 1845
                     Cohort Clupeocephala Patterson & Rosen, 1977
                       Subcohort Euteleosteomorpha Greenwood et al., 1966
                         Infracohort Stomiati
                           Order Osmeriformes Regan, 1913 - freshwater smelts
                             Suborder Osmeroidei Weitzman, 1967
                               1 Family Osmeridae Regan, 1913 - smelts
                               2 Family Plecoglossidae Bleeker, 1859 - ayu fishes
                               3 Family Salangidae Bleeker, 1859 - icefishes