<i>In situ</i> <a href="https://en.wikipedia.org/wiki/Stigmaria" class="extiw" title="w:Stigmaria"><i>Stigmaria</i></a> from the <a href="https://en.wikipedia.org/wiki/Pennsylvanian" class="extiw" title="w:Pennsylvanian">Pennsylvanian</a> Joggins Formation, Nova Scotia.
<a href="//commons.wikimedia.org/wiki/User:Rygel,_M.C." title="User:Rygel, M.C.">Michael C. Rygel</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>