Eastonian Posted August 21, 2019 Share Posted August 21, 2019 Here's a specimen I picked up last year from the St. Leon, Indiana, road cut. The site is late Ordovician in the Waynesville formation. My guess is that it's a trace fossil that shows the convex hyporelief of two trilobite burrows. Each borrow is approximately 4 mm long, and is 2 mm of the other edge of one burrow to the outer edge of the other. In the second image, you'll also see what I believe could be pygidium or cephalon impressions on the left side, about two thirds down. Link to comment Share on other sites More sharing options...
RCFossils Posted August 21, 2019 Share Posted August 21, 2019 I agree it appears to be a rusophycus. 2 Link to comment Share on other sites More sharing options...
Rockwood Posted August 21, 2019 Share Posted August 21, 2019 Second. Definitely a buggy sort of spot. Link to comment Share on other sites More sharing options...
LiamL Posted August 21, 2019 Share Posted August 21, 2019 Not to highjack your post, but do you think this is a track too? Towards the top of course. Found at wrens nest, England which is famous for trilobites. Yorkshire Coast Fossil Hunter Link to comment Share on other sites More sharing options...
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