Oblique bedding plane view of large <a href="https://en.wikipedia.org/wiki/Diplichnites" class="extiw" title="w:Diplichnites"><i>Diplichnites</i></a> from the Joggins Formation (<a href="https://en.wikipedia.org/wiki/Pennsylvanian" class="extiw" title="w:Pennsylvanian">Pennsylvanian</a>), Cumberland Basin, Nova Scotia.  This trackway was made by the large millipede <a href="https://en.wikipedia.org/wiki/Arthropleura" class="extiw" title="w:Arthropleura"><i>Arthropleura</i></a>.
<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>