mega_ora Posted July 24, 2019 Share Posted July 24, 2019 2 inches in length found in an area where lots of fossils of shells, worms/tube plants, trilobites, etc. Lots of limestone and flint. Link to comment Share on other sites More sharing options...
caldigger Posted July 24, 2019 Share Posted July 24, 2019 Orthocone cephalopod? Link to comment Share on other sites More sharing options...
mega_ora Posted July 24, 2019 Author Share Posted July 24, 2019 Thanks! Very Cool. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted July 24, 2019 Share Posted July 24, 2019 3 hours ago, caldigger said: Orthocone cephalopod. The segments are somewhat irregular. Also, the longitudinal 'ridges' along both sides of the matrix are bothersome. After a bit of research I find that some are indeed quite irregular. However, I still don't understand the ridges on either side of the 'tunnel'. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Rockwood Posted July 24, 2019 Share Posted July 24, 2019 Crinoid holdfasts can have this irregularity in structure maybe ? Link to comment Share on other sites More sharing options...
mega_ora Posted July 25, 2019 Author Share Posted July 25, 2019 Thanks for helping with the puzzle. It does have a distinct "opening" that isn't just worn away, the break is part of the design. The second and third pictures show a line running the length of the opening. Link to comment Share on other sites More sharing options...
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