fossilized6s Posted October 8, 2014 Share Posted October 8, 2014 I found this about 10 years ago while hunting crinoids in a river near Crawfordsville IN. I believe it to be from the Edwardsville formation which is late Mississippian. This spot is famous for it's wonderfully preserved and complete crinoids, but i don't think my mystery fossil has anything to do with them. The backside of the fossil is encrusted with crinoid stem fragments (as expected), so i know the age should be correct as most crinoids found there (late Mississippian). Now it looks to me like a part of a crab carpace, but the only crab material that i have found is macro and micro pieces. The mystery piece is about 2 1/4" x 2". Have there been crabs found in Crawfordsville? If not crab, what??? Any and all ideas are welcomed and appreciated! Hopefully i can finally put this mystery to rest. "Bottom/backside" Thanks for looking! ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
jpc Posted October 8, 2014 Share Posted October 8, 2014 Looks like the inside view of a Branchiopoda to me. Link to comment Share on other sites More sharing options...
fossilcrazy Posted October 8, 2014 Share Posted October 8, 2014 Looking at the inside of a Brachiopod. I see the muscle attachment scar. Link to comment Share on other sites More sharing options...
fossilized6s Posted October 8, 2014 Author Share Posted October 8, 2014 Looking at the inside of a Brachiopod. I see the muscle attachment scar. I can see that. I think you've got it! Thank you sir! Thanks jpc for your suggestion. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
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