<i>Bactroptyxis trachaea</i>, Aubry-en-exmes, Normandy, France; Middle Jurassic (Bathonian).
<a href="//commons.wikimedia.org/wiki/User:Wilson44691" title="User:Wilson44691">Wilson44691</a>. Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster).<a rel="nofollow" class="external autonumber" href="http://www3.wooster.edu/geology/MWilson.html">[1]</a>
<span class="int-own-work" lang="en">Own work</span>