Autapomorphy of Bryconamericus cf. exodon:

1. Number of gill rakers on first hypobranchial and ceratobranchial (196): (1> 0) 11 or more. Reversal of synapomorphy 5 of node 196. Paralleled in node 237 and in Bryconamericus cf. iheringii . Some trees: Paralleled in the Cheirodontinae and in Cyanocharax alburnus .