Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct.
       Vertebrata Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
         Myopterygii Janvier, 1978 - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836 see Clade Pan-Osteichthyes Rowe 2004 [Moore & Near 2020]
               Euteleostomi - bony vertebrates see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
                   Subclass Neopterygii Regan, 1923
                     Division Teleostei Müller, 1845
                       Subdivision Osteoglossomorpha Greenwood et al., 1966 see Cohort Osteoglossomorpha Greenwood et al., 1966
                         Order Osteoglossiformes Berg, 1940 - bonytongues
                           1 [plesion] Genus †Xixiaichthys Zhang, 2004
                           2.1 [plesion] Family †Ostariostomidae Schaeffer, 1949
                           2.2.1 Family Osteoglossidae Bonaparte, 1845, sedis mutabilis - bonytongues
                           2.2.2 Genus †Palaeonotopterus Forey, 1997, incertae sedis
                           2.2.3 Family Notopteridae Bleeker, 1851, sedis mutabilis - featherfin knifefishes
                           2.2.4 Family Mormyridae Bonaparte, 1831, sedis mutabilis [paraphyletic] - elephantfishes
                           2.2.4.n Family Gymnarchidae Bleeker, 1859 [monotypic] - abas