connorp Posted May 5, 2023 Share Posted May 5, 2023 Maybe a long shot, but I'm hoping someone might recognize this. It looks like a piece of some arthropod exoskeleton to me, but further than that I have no idea. It was collected in the Pennsylvanian of Illinois. The site it collected from is terrestrial/freshwater. It is dominated by plants but has produced bivalves, branchiopods, and shark egg cases – typical fauna for a site like this. Some other possible arthropod bits have showed up, but nothing obviously identifiable. I would expect horseshoe crabs and/or insects will show up eventually, but nothing definitive yet. Link to comment Share on other sites More sharing options...
westcoast Posted May 5, 2023 Share Posted May 5, 2023 Can you share some images of the branchiopods you find there? Could this be a bit of branchiopod? Link to comment Share on other sites More sharing options...
connorp Posted May 5, 2023 Author Share Posted May 5, 2023 10 hours ago, westcoast said: Can you share some images of the branchiopods you find there? Could this be a bit of branchiopod? I don’t have any pictures on hand, but they have all been Leaia and Pemphilimnadiopsis. This does not appear to be a piece of either. This thing is also bigger than any branchiopod I’ve seen from here. Link to comment Share on other sites More sharing options...
deutscheben Posted May 5, 2023 Share Posted May 5, 2023 That is such an interesting one. It feels a bit reminiscent of a shrimp part to me? Link to comment Share on other sites More sharing options...
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