Infraphylum [Gnathostomata] Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
   Megaclass Osteichthyes Huxley, 1880 see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
     Superclass Actinopterygii Woodward, 1891 see Clade Actinopterygii Woodward 1891 [Moore & Near 2020]
       Class Actinopteri Cope, 1871
         Subclass Neopterygii Regan, 1923
           Infraclass Teleostei Müller, 1845 see Division Teleostei Müller, 1845
             Megacohort Osteoglossocephalai
               Supercohort Clupeocephala Patterson & Rosen, 1977 see Cohort Clupeocephala Patterson & Rosen, 1977
                 Cohort Otomorpha Wiley & Johnson, 2010 see Subcohort Otomorpha Wiley & Johnson, 2010
                   Subcohort Ostariophysi Sagemehl, 1885 see Superorder Ostariophysi Sagemehl, 1885
                     Section Otophysa Rosen & Greenwood, 1970
                       Superorder Characiphysae Fink & Fink, 1981 [monotypic]
                         Order Characiformes Goodrich, 1909 - characins
                           Suborder Characoidei
                             01 Family Acestrorhynchidae Eigenmann, 1912 - freshwater barracudas and biting tetras
                             02 Family Alestidae Cockerell, 1910 - African tetras
                             03 Family Anostomidae Günther, 1864 - toothed headstanders
                             04 Family Chalceidae Fowler, 1958 - tucanfishes
                             05 Family Characidae Latreille, 1825 - characids
                             06 Family Chilodontidae Fowler, 1950, nom. illeg. - headstanders see Family Chilodidae Eigenmann, 1910
                             07 Family Crenuchidae Günther, 1864 - crenuchids
                             08 Family Ctenoluciidae Schultz, 1944 - pike characids
                             09 Family Curimatidae Gill, 1858 - toothless characiforms
                             10 Family Cynodontidae Eigenmann, 1903, nom. protect. - sabertoothed characids
                             11 Family Erythrinidae Valenciennes, 1847 - trahiras
                             12 Family Gasteropelecidae Bleeker, 1859 - freshwater hatchetfishes
                             13 Family Hemiodontidae Bleeker, 1859 - hemiodontids
                             14 Family Hepsetidae Hubbs, 1939 (1909) - African pikes
                             15 Family Iguanodectidae Eigenmann, 1909 - iguanodectids
                             16 Family Lebiasinidae Gill, 1889 - lebiasinids
                             17 Family Parodontidae Eigenmann, 1910 - darter tetras
                             18 Family Prochilodontidae Eigenmann, 1909 - bocachicos
                             19 Family Serrasalmidae Bleeker, 1859 - piranhas and allies
                             20 Family Triportheidae Fowler, 1940 - hatchet characins
                             21 Family Bryconidae Eigenmann, 1912 - bryconids