Chordata Bateson, 1885 - chordates
   Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
     Subclass Actinopteri Cope, 1871 see Class Actinopteri Cope, 1871
       Order Isospondyli Cope, 1887 see Order Osteoglossiformes Berg, 1940
         Suborder Clupeoidei Goodrich, 1909
           137 Family Chanidae Günther, 1868 - milkfishes
           138 Family Ancylostylidae Jordan, 1923 [monotypic]
           139 Family Chirocentridae Bleeker, 1849 - wolf herrings
           140 Family †Erythrinolepidae Cockerell, 1919 [monotypic]
           141 Family Pterothrissidae Gill, 1893 see Subfamily Pterothrissinae Gill, 1893
           142 Family †Ichthyodectidae Crook, 1892
           143 Family †Saurodontidae Bonaparte, 1846
           144 Family Gonorhynchidae Gunther, 1868 see Family Gonorynchidae Fowler, 1941 (1848)
           145 Family †Notogoneidae Cockerell, 1923 see Family Gonorynchidae Fowler, 1941 (1848)
           146 Family Hiodontidae Valenciennes, 1847 - mooneyes
           147 Family Clupeidae Cuvier, 1816 - herrings and sprats
           148 Family Dussumieriidae Gill, 1861 - round herrings
           149 Family Dorosomidae Gill, 1861 see Family Dorosomatidae Gill, 1861
           150 Family Engraulidae Gill, 1861 - anchovies
           151 Family Alepocephalidae Bonaparte, 1846 - slickheads
           152 Family Macristiidae [monotypic] see Family Bathysauridae Fowler, 1944
           153 Family Phractolaemidae Boulenger, 1901 [monotypic] - snake mudheads
           154 Family Kneriidae Günther, 1868 - shellears
           155 Family Cromeriidae [monotypic] see Family Kneriidae Günther, 1868