<i>Mesohippus</i>, Equidae; Oligocene, USA (Replica of a specimen of the American Museum of Natural History, New York); Cranium, complete skeleton, left forefoot frontal, left forefoot lateral; Staatliches Museum für Naturkunde Karlsruhe, Germany.
<a href="//commons.wikimedia.org/wiki/User:Llez" title="User:Llez">H. Zell</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>