After Nelson, 1994, with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Tetragonopterinae
   |-- Astyanax Baird & Girard; Pleist. R. SA. [81]
   |-- Bryconadenos tanaothoros
   |-- Bryconamericus
   |--o Bryconops
   |  |-- B. affinis (Günther, 1864) (Orangefin tetra)
   |  |-- B. alburnoides Kner, 1858
   |  |-- B. caudomaculatus (Günther, 1864) (Tailspot tetra)
   |  |-- B. cyrtogaster (Norman, 1926)
   |  |-- B. giacopinii (Fernández-Yépez, 1950)
   |  |-- B. gracilis (Eigenmann, 1908)
   |  |-- B. humeralis Machado-Allison, Chernoff & Buckup, 1996
   |  |-- B. inpai Knöppel, Junk & Géry, 1968
   |  |-- B. melanurus (Bloch, 1794)
   |  |-- B. transitoria Steindachner, 1915
   |  `-- B. vibex Machado-Allison, Chernoff & Buckup, 1996
   |--o Cheirodon
   |  |-- C. australe Eigenmann, 1928
   |  |-- C. galusdae Eigenmann, 1928
   |  |-- C. ibicuhiensis Eigenmann, 1915
   |  |-- C. interruptus (Jenyns, 1842) (Uruguay tetra)
   |  |-- C. kiliani Campos, 1982
   |  `-- C. pisciculus Girard, 1855
   |--o Deuterodon
   |  |-- D. amniculus Lucena & Lucena, 1992
   |  |-- D. garujo Lucena & Lucena, 1992
   |  |-- D. iguape Eigenmann, 1907
   |  |-- D. langei Travassos, 1957
   |  |-- D. parahybae Eigenmann, 1908
   |  |-- D. pedri Eigenmann, 1908
   |  |-- D. rosae (Steindachner, 1908)
   |  |-- D. singularis Lucena & Lucena, 1992
   |  |-- D. stigmaturus (Gomes, 1947)
   |  `-- D. supparis Lucena & Lucena, 1992
   |--o Gymnocorymbus (mustatetrat)
   |  |-- G. bondi (Fowler, 1911)
   |  |-- G. ternetzi (Boulenger, 1895) (mustatetra, suruvaippatetra; Black tetra)
   |  `-- G. thayeri Eigenmann, 1908 (False black tetra)
   |-- Hemibrycon
   |--+-- Hemigrammus Gill
   |  `-- Hyphessobrycon Durbin
   |-- Inpaichthys kerri Géry & Junk, 1977 (kerritetra; Royal tetra)
   |-- Jupiaba Zanata, 1997
   |?- Knodus Eigenmann, 1911 [jr. synon to Bryconamericus?]
   |?- Megalamphodus [not recognized by the Fishbase]
   |-- Moenkhausia Eigenmann
   |--o Oligosarcus
   |  |-- O. acutirostris Menezes, 1987
   |  |-- O. argenteus Günther, 1864
   |  |-- O. bolivianus (Fowler, 1940)
   |  |-- O. brevioris Menezes, 1987
   |  |-- O. hepsetus (Cuvier, 1829)
   |  |-- O. jenynsii (Günther, 1864)
   |  |-- O. longirostris Menezes & Géry, 1983
   |  |-- O. macrolepis (Steindachner, 1877)
   |  |-- O. menezesi Miquelarena & Protogino, 1996
   |  |-- O. oligolepis (Steindachner, 1867)
   |  |-- O. paranensis Menezes & Géry, 1983
   |  |-- O. pintoi Campos, 1945
   |  |-- O. planaltinae Menezes & Géry, 1983
   |  |-- O. robustus Menezes, 1969
   |  |-- O. schindleri Menezes & Géry, 1983
   |  `-- O. solitarius Menezes, 1987
   |--o Paracheirodon [Cheirodon] (neontetrat) [3]
   |  |-- P. axelrodi (Schultz, 1956) [Cheirodon axelrodi Schultz, 1956, Hyphessobrycon cardinalis] (kardinaalitetra; Cardinal tetra)
   |  |-- P. innesi (Myers, 1936) (Neon tetra)
   |  `-- P. simulans (Géry, 1963) (Green neon tetra)
   |--o Phenacogaster
   |  |-- P. beni Eigenmann, 1911
   |  |-- P. calverti (Fowler, 1941)
   |  |-- P. carteri (Norman, 1934)
   |  |-- P. franciscoensis Eigenmann, 1911
   |  |-- P. jancupa Malabarba & Lucena, 1995
   |  |-- P. megalostictus Eigenmann, 1909
   |  |-- P. microstictus Eigenmann, 1909
   |  |-- P. pectinatus (Cope, 1870)
   |  |-- P. suborbitalis Ahl, 1936
   |  `-- P. tegatus (Eigenmann, 1911)
   |-- Pristella maxillaris (Ulrey, 1894) (intiaaninsulka; X-ray tetra)
   |-- Probolodus heterostomus Eigenmann, 1911
   |--o Rachoviscus
   |  |-- R. crassiceps Myers, 1926
   |  `-- R. graciliceps Weitzman & Cruz, 1981
   |--o Tetragonopterus Mioc. R. SA.
   |  |-- T. argenteus Cuvier, 1816 (hopeatetra; silver tetra)
   |  `-- T. chalceus Spix & Agassiz, 1829
   |--o Tyttobrycon
   |  |-- T. dorsimaculatus Géry, 1973
   |  |-- T. hamatus Géry, 1973
   |  |-- T. spinosus Géry, 1973
   |  `-- T. xeruini Géry, 1973
   `== other Tetragonopterine genera?

Reference(s):