Autapomorphies of Bryconexodon juruenae:

1. Temporal fossa (13): (1> 0) well developed. Paralleled in node 300 and in Brycon meeki and Salminus brasiliensis .

2. Distance between cartilage anterior to orbitosphenoid and lateral ethmoids (38): (1> 0) contacting, or almost contacting, lateral ethmoids. Reversal of synapomorphy 1 of node 204. Paralleled in node 223 and in Galeocharax humeralis .

3. Anterior paired projections of parasphenoid (40): (0> 1) present. Paralleled in Bryconexodon juruenae .

4. Dorsolateral processes of vomer (54): (0> 1) present. Paralleled in nodes 215 and 218 and in Markiana nigripinnis .

5. Articulation between second and third infraorbitals (62): (2> 1) anteroventrally angled.

6. Articulation between quadrate and anguloarticular (154): (1> 0) anterior to or at vertical through middle eye. Paralleled in node 202 and Phenacogaster tegatus .