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
                       Elopocephala see Supercohort Teleocephala de Pinna, 1996
                         Clupeocephala
                           Subdivision Ostarioclupeomorpha Arratia, 1997 see Cohort Otomorpha E.O. Wiley & G.D. Johnson, 2010
                             Superorder Ostariophysi Jordan & Evermann, 1896 see Subcohort Ostariophysi Sagemehl, 1885
                               Series Otophysi Rosen & Greenwood, 1970 see Section Otophysa (Rosen & Greenwood, 1970)
                                 Cypriniphysi
                                   Characiphysi Fink & Fink, 1981 see Superorder Characiphysae (Fink & Fink, 1981)
                                     Order Characiformes Goodrich, 1909 - characins
                                       Suborder Characoidei
                                         Superfamily Characoidea
                                           Family Characidae - characins
                                             Subfamily Serrasalminae - piranhas and allies
                                               01 Genus Acnodon Eigenmann, 1903
                                               02 Genus Catoprion Müller & Troschel, 1844 [monotypic]
                                               03 Genus Colossoma Eigenmann, 1903 [monotypic]
                                               04 Genus Metynnis Cope, 1878
                                               05 Genus Mylesinus Cuvier & Valenciennes, 1849
                                               06 Genus Myleus Müller & Troschel, 1844
                                               07 Genus Pristobrycon Eigenmann, 1915
                                               08 Genus Pygocentrus Müller & Troschel, 1844
                                               09 Genus Serrasalmus Lacepède, 1803 - piranha
                                               10 Genus Tometes Cuvier & Valenciennes, 1849