Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
       Vertebrata (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812
         Myopterygii - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836
               Euteleostomi - bony vertebrates
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes
                   Subclass Neopterygii Regan, 1923
                     Division Teleostei Müller, 1845 see Infraclass Teleostei Müller, 1845
                       Subdivision Osteoglossomorpha Greenwood et al., 1966 see Cohort Osteoglossomorpha Greenwood et al., 1966
                         Order Osteoglossiformes Berg, 1940 - bonytongues
                           Family Mormyridae Bonaparte, 1831, sedis mutabilis [paraphyletic] - elephantfishes
                             01 Genus Brienomyrus Taverne, 1971
                             02 Genus Campylomormyrus Bleeker, 1874
                             03 Genus Gnathonemus Gill, 1862 - elephant fishes
                             04 Genus Hippopotamyrus Pappenheim, 1906
                             05 Genus Hyperopisus Gill, 1862
                             06 Genus Marcusenius Gill, 1862
                             07 Genus Mormyrops Müller, 1853
                             08 Genus Mormyrus Linnaeus, 1758
                             09 Genus Petrocephalus Marcusen, 1854
                             10 Genus Pollimyrus Taverne, 1971
                             11 Genus Stomatorhinus Boulenger, 1898