Sanjay Posted December 25, 2020 Share Posted December 25, 2020 Hi, recovered these from conglomerate horizon in jurassic strata near jaisalmer, Rajasthan, India. My guess is they are osteoderm of some sort. Looking for some more educated opinions. Link to post Share on other sites
PaleoNoel Posted December 25, 2020 Share Posted December 25, 2020 Looks similar in texture to a chimaera tooth plate, if this is a jurassic marine setting this could be your potential answer. Here's my own from the Late Cretaceous of New Jersey. 2 Link to post Share on other sites
pachy-pleuro-whatnot-odon Posted December 25, 2020 Share Posted December 25, 2020 My initial guess would also have been tooth-plate, as the grooved surface on the finds look more like the dental ridges on a fish's tooth-plate then the comparatively rougher surface of an osteoderm. Compare with the below images of fossils found in the Boulonais region of northwestern France and dating to the Kimmeridgian and Tithonian stages of the Jurassic: Ischyodus sp. (Auluxacanthus, Leptacanthus) Asteracanthus sp. Asteracanthus ornatissimus Gyrodus sp. 1 Link to post Share on other sites
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