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by debi goodman
(North Myrtle Beach SC)

I found this on the beach at North Myrtle Beach SC. I dont know anything about it--guessing it is some sort of shell but bottom confuses me. Its about the size of a baseball

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by: Douglas

This is a bivalve. I think it is an extinct oyster from the Cretaceous Period.
If you follow this link it looks a lot like your.

This is the run down on that fossil.
Upper Level Taxonomy
Animalia, Mollusca, Bivalvia, Autobranchia, Ostreiformii, Ostreidina, Ostreidina, Gryphaeidae, Exogyrinae

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