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	Taxon: Order Gymnotiformes - knifefishes
Taxa Advanced Search Browse Classification Browse Cladification View Hide Synonyms Show Alternatives Show References Show Counts Show Position Sort by Name	Hierarchy Nomenclature Properties Relationships Bibliography Links  Classification by:  M.J. Benton (2005) Vertebrate Palaeontology, Third Edition (Classification) Systema Naturae 2000 (Classification) W.N. Eschmeyer (1998) (Classification) W.N. Eschmeyer (2004-2009) The Catalog of Fishes, on-line version. (Classification) Natura - nature    Mundus Plinius - physical world      Naturalia        Biota          Domain Eukaryota - eukaryotes            Kingdom Animalia C. Linnaeus, 1758 - animals              Subkingdom Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians                Branch Deuterostomia Grobben, 1908 - deuterostomes                  Infrakingdom Chordonia (Haeckel, 1874) Cavalier-Smith, 1998                    Phylum Chordata Bateson, 1885 - chordates                      Subphylum Vertebrata Cuvier, 1812 - vertebrates                        Infraphylum Gnathostomata auct. - jawed vertebrates                          Class Osteichthyes Huxley, 1880                            Subclass Actinopterygii - ray-finned fishes                              Infraclass Actinopteri                                Superdivision Neopterygii                                  Division Halecostomi                                    Subdivision Teleostei                                      Infradivision Elopocephala                                        Cohort Clupeocephala                                          Subcohort Otocephala                                            Division Ostariophysi                                              Order Gymnotiformes - knifefishes                                                Family Sternopygidae - glass knifefishes                                                Family Apteronotidae - ghost knifefishes                                                Family Rhamphichthyidae - sand knifefishes                                                Family Hypopomidae                                                Family Gymnotidae™  - nakedback knifefishes                                                Family Electrophoridae - electric knifefishes
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