Class Actinopterygii Woodward, 1891 - ray-finned fishes
Count: [*†*] 55o;274f;61g;6s; †4o;4f;7g;2s
   Subclass Neopterygii Regan, 1923
  Count: [*] 55o;274f;61g;6s; †4o;4f;7g;2s
     Infraclass Teleostei Müller, 1845
    Count: [*] 55o;274f;61g;6s; †1o;4f;5g;2s
       Supercohort Teleocephala de Pinna, 1996
      Count: [*] 55o;274f;61g;6s; †1f;2g
         Clupeocephala
        Count: [*] 49o;264f;55g;6s
           Cohort Otomorpha E.O. Wiley & G.D. Johnson, 2010
          Count: [*] 6o;20f;5g
             Subcohort Ostariophysi Sagemehl, 1885
            Count: [*] 5o;15f;5g
               Section Otophysa (Rosen & Greenwood, 1970)
              Count: [*] 4o;11f;5g
                 Superorder Characiphysae (Fink & Fink, 1981)
                Count: [*] 3o;5f;5g
                   1 Order Characiformes Goodrich, 1909 - characins
                  Count: -
                   2.1 Order Siluriformes Rafinesque, 1810 - catfishes
                  Count: [*] 1g
                   2.2 Order Gymnotiformes Rafinesque, 1810 - American knifefishes
                  Count: [*] 5f;4g