MrBones Posted January 23 Share Posted January 23 Hello, I recently picked up these fossil sea urchins. I think they're miocene in age. I'm not quite sure if these are different types of urchins, or if they are just in different stages of weathering. I put a modern "burrowing urchin" next to the largest one as a comparison. Found in Ruwais, Abu Dhabi, UAE (United Arab Emirates) on a beach with dredged materials on it. 1 Quote Link to post Share on other sites
fifbrindacier Posted January 23 Share Posted January 23 @caterpillar @Coco ? Quote Link to post Share on other sites
caterpillar Posted January 23 Share Posted January 23 Echinometra is a good candidate https://www.sciencedirect.com/science/article/abs/pii/S0016699506802718 2 Quote Link to post Share on other sites
Coco Posted January 23 Share Posted January 23 Hi, I just watched the same article! Echinometra miocenica seems to be a fossil synonym for Echinometra mathaei. Coco 2 Quote Link to post Share on other sites
MrBones Posted January 23 Author Share Posted January 23 1 minute ago, Coco said: Hi, I just watched the same article! Echinometra miocenica seems to be a fossil synonym for Echinometra mathaei. Coco Interesting! Do you think that all the urchins in the photos are the same species? Quote Link to post Share on other sites
caterpillar Posted January 23 Share Posted January 23 Yes, but very eroded 2 Quote Link to post Share on other sites
Coco Posted January 23 Share Posted January 23 The one on the right is the best preserved. See if you have the same number of pore pairs on each other, it’ll probably be the only discriminant clue left on those fossils (4 pores pairs). Coco 1 Quote Link to post Share on other sites
caterpillar Posted January 23 Share Posted January 23 Here, one specimen from south of France http://www.paleotheque.fr/global/fiche.php?id=538&categorie=echinodermes 2 Quote Link to post Share on other sites
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