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I.d. Help Please. Vertebrae Disc ? Echinoid/sand Dollar?


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It's not an echinoid. I don't think it is a fossil.

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Uncle Siphuncle

i vote rock, not echinoid. primitive echs still have distinct plate detail.

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1. Its almost perfectly symmetrical, almost like an artifact.

2. Concretion? The cracks look like a concretion.

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Wow. Thanks for the inputs. Surprises me that you guys think it may not be a fossil. What is a concretion ?

I agree about the plate detail Dan. It should have some echinoidal patterns.

Edited by Coralhead
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