Map of northern South America during the Middle Pliocene (ca. 23 - 10 Ma) with focus on the Pebas Mega-Wetlands prior to the establishing of the cross-continental Amazone drainage.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup>
<a href="//commons.wikimedia.org/wiki/User:Armin_Reindl" title="User:Armin Reindl">Armin Reindl</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>