Lucid_Bot Posted November 16, 2022 Share Posted November 16, 2022 Hi, I don't have any information on this specimen since I believe the rock that I found it in is foreign to the area I discovered it. Although I think the rock is from somewhere around the Western Pennsylvania/Eastern Ohio area. It is approximately 2.6 cm by 2 cm. Just hoping someone has some idea what it is. Thanks again. 1 Link to comment Share on other sites More sharing options...
Ludwigia Posted November 16, 2022 Share Posted November 16, 2022 Looks like a cast of a bivalve shell. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Misha Posted November 16, 2022 Share Posted November 16, 2022 I'd have to disagree with @Ludwigia, I think this looks more like a productid brachiopod valve, it's partially exposed giving it the asymmetrical appearance of a bivalve. Maybe something like Echinaria sp.? Although I am not great at identifying productids. @Tidgy's Dad may be able to tell 1 1 3 Link to comment Share on other sites More sharing options...
ClearLake Posted November 16, 2022 Share Posted November 16, 2022 I'm with @Misha, it looks like a productid brachiopod to me. I'm thinking something like Cancrinella with those coarse rugae and what looks like a bit of an ear exposed at the edge near the hingeline. But I'm assuming it is Pennsylvanian and that could be wrong of course. 1 1 1 Link to comment Share on other sites More sharing options...
TqB Posted November 17, 2022 Share Posted November 17, 2022 One more for productid brachiopod. My first thought was something like Echinoconchus. 2 1 Tarquin Link to comment Share on other sites More sharing options...
DPS Ammonite Posted November 17, 2022 Share Posted November 17, 2022 (edited) 1 hour ago, TqB said: One more for productid brachiopod. My first thought was something like Echinoconchus. Echinaria and Echinoconchus may be at least partial synonyms. See synonymy in: Brew, D. C., & Beus, S. S. (1976). A Middle Pennsylvanian Fauna from the Naco Formation near Kohl Ranch, Central Arizona. Journal of Paleontology, 50(5), 888–906. http://www.jstor.org/stable/1303586 Edited November 17, 2022 by DPS Ammonite 3 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
cngodles Posted November 17, 2022 Share Posted November 17, 2022 (edited) Another vote for Echinaria. Scale bar 1 cm. Edited November 17, 2022 by cngodles 2 Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted November 25, 2022 Share Posted November 25, 2022 Yes, definitely a productid, though I wouldn't like to guess which one without a location. Quite a few possible candidates. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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