After Nelson, 1994, and Froese & Pauly, 2001 [“The Fishbase”]

<==o Iguanodectinae ()? [2/11]
   |--o Iguanodectes ()? [8]
   |  |-- I. adujai Géry, 1970
   |  |-- I. geisleri Géry, 1970
   |  |-- I. gracilis Géry, 1993
   |  |-- I. polylepis Géry, 1993
   |  |-- I. purusi (Steindachner, 1908)
   |  |-- I. rachovii Regan, 1912
   |  |-- I. spilurus (Günther, 1864)
   |  `-- I. variatus Géry, 1993
   `--o Piabucus ()? [3]
      |-- P. caudomaculatus Vari, 1977
      |-- P. dentatus (Koelreuter, 1763)
      `-- P. melanostomus Holmberg, 1891


Reference(s):

Froese, R. & Pauly, D. (eds), 2001: FishBase.
–iNet: www.fishbase.org

Nelson, J. S., 1994: Fishes of the world.
–John Wiley & Sons Inc., New York, 1994, xx-600