<i>Eastmanosteus</i>, a genus of extinct placoderm fish from the Devonian of Australia, here seen with some thelodonts and acanthodians, two other groups of extinct fish.
<a href="//commons.wikimedia.org/wiki/User:Joerim" title="User:Joerim">Joerim</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>