Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
     Pisces
       Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
         Order Salmoniformes Bleeker, 1859 - trout, salmon, and whitefish
           Family Alepocephalidae Bonaparte, 1846 - slickheads
           Family Argentinidae Bonaparte, 1846 - argentines
           Family Bathylagidae Gill, 1884 - deepsea smelts
           Family †Bernardichthyidae Huddleston, 1981
           Family Esocidae Rafinesque, 1815 - pikes
           Family Galaxiidae Müller, 1845 - galaxiids
           Family Lepidogalaxiidae Rosen, 1974 - salamanderfishes
           Family Leptochilichthyidae - leptochilichthyids see Family Alepocephalidae Bonaparte, 1846
           Family Microstomatidae Bleeker, 1859 - pencilsmelts
           Family Opisthoproctidae Schmidt, 1918 - spookfishes
           Family Osmeridae Regan, 1913 - smelts
           Family †Pattersonellidae Taverne, 1982
           Family Platytroctidae Koefoed, 1927 - tubeshoulders
           Family Plecoglossidae Bleeker, 1859 - ayu fishes
           Family Retropinnidae Gill, 1862 - New Zealand smelts
           Family Salangidae Bleeker, 1859 - icefishes
           Family Salmonidae Cuvier, 1816 - salmonids
           Family Umbridae Bonaparte, 1845 - mudminnows