JimTh Posted March 14, 2023 Share Posted March 14, 2023 Found this guy in crumbly shaley stuff, Monroe County, Indiana. The rippling shape reminds me a lot of a modern oyster shell. Closest thing I can match online is platyceras, but I don’t see any like this. The large associated crinoid plates are about 1/2” diameter for size reference. Is this worth prepping out and trying to glue together/consolidate? Link to comment Share on other sites More sharing options...
connorp Posted March 14, 2023 Share Posted March 14, 2023 Could we see more angles? Link to comment Share on other sites More sharing options...
JimTh Posted March 14, 2023 Author Share Posted March 14, 2023 Apologies, I’m at work and can only post what’s on my phone. This is a slightly different angle. Just shot these pics on the way out in case it fell apart. I can take more tonight when I get home. Link to comment Share on other sites More sharing options...
piranha Posted March 14, 2023 Share Posted March 14, 2023 Platyceras (Orthonychia) chesterense has similar features: Thein, M.L., Nitecki, M.H. 1974 Gastropoda of the Illinois Basin. Fieldiana: Geology, 34:1-238 LINK 4 1 Link to comment Share on other sites More sharing options...
JimTh Posted March 17, 2023 Author Share Posted March 17, 2023 That looks like it, thanks so much! Link to comment Share on other sites More sharing options...
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