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
                       Elopocephala Arratia, 1999 see Supercohort Teleocephala de Pinna, 1996
                         Clupeocephala Patterson & Rosen, 1977 see Cohort Clupeocephala Patterson & Rosen, 1977
                           Subdivision Ostarioclupeomorpha Arratia, 1997 see Cohort Otocephala Johnson & Patterson, 1996
                             Superorder Ostariophysi Sagemehl, 1885
                               Series Otophysi Rosen & Greenwood, 1970 see Section Otophysa Rosen & Greenwood, 1970
                                 Cypriniphysi Fink & Fink, 1981
                                   Characiphysi Fink & Fink, 1981 see Subseries Characiphysi Fink & Fink, 1981
                                     Siluriphysi Fink & Fink, 1996
                                       Order Gymnotiformes Gill, 1872 - Neotropical knifefishes
                                         Suborder Sternopygoidei
                                           Superfamily Apteronotoidea
                                             Family Apteronotidae Jordan, 1923 - ghost knifefishes
                                               01 Genus Adontosternarchus Ellis, 1912
                                               02 Genus Apteronotus Lacépède, 1800 [polyphyletic]
                                               03 Genus Compsaraia Albert, 2001 [monotypic]
                                               04 Genus Magosternarchus Lundberg, Cox Fernandes & Albert, 1996 see Genus Sternarchella Eigenmann, 1905
                                               05 Genus Megadontognathus Mago-Leccia, 1994
                                               06 Genus Orthosternarchus Ellis, 1912 [monotypic]
                                               07 Genus Parapteronotus Albert, 2001 [monotypic]
                                               08 Genus Platyurosternarchus Mago-Leccia, 1994 [monotypic]
                                               09 Genus Porotergus Ellis, 1912
                                               10 Genus Sternarchella Eigenmann, 1905
                                               11 Genus Sternarchogiton Eigenmann, 1905 [monotypic]
                                               12 Genus Sternarchorhamphus Eigenmann, 1905 [monotypic]
                                               13 Genus Sternarchorhynchus Castelnau, 1855