Early Cretaceous mayfly from the Yixian formation of China, previously known as <i>Ephemeropsis</i>
<a href="//commons.wikimedia.org/wiki/User:Ferahgo_the_Assassin" title="User:Ferahgo the Assassin">Ferahgo the Assassin</a> (Emily Willoughby, e.deinonychus@gmail.com) <a rel="nofollow" class="external free" href="http://emilywilloughby.com">http://emilywilloughby.com</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>