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 Elopiformes Gosline, 1960 - tenpounders
           Family †Crossognathidae Woodward, 1901, "nom. praeval."
           Family Elopidae Valenciennes, 1847 - tenpounders and ladyfishes
           Family Megalopidae Jordan & Gilbert, 1883 - tarpons
           Family †Notelopidae Forey, 1977
           Family †Pachyrhizodontidae Cope, 1872