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Is This A Fossil?


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This is yet another rock I collected on the shorelines of Lake Texoma, Oklahoma in an area with lots of limestone from the Cretaceous. It reminds me of a sponge, but it may just be a rock. Does anyone know? (Pardon the tiny hand. My daughter was helping out with the staging of the item.)



New to fossils, but not to nature

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Need more pictures to be honest, from different angles. It could be anything from a block of limestone to a rudist reef piece.

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the side view looks a lot like a stromatolite, though those that I'm familiar with from around here are solid. But after looking at some images of other Cretaceous stromatolites, I'm thinking that's what it is.

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Looks like stromatolites ( from colonies of algae) or rudists.

Thanks for your help in advance.



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like rudists to me

"Absence of evidence is not evidence of absence"_ Carl Sagen

No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go.

" I think, therefore I collect fossils." _ Me

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes

"can't we all just get along?" Jack Nicholson from Mars Attacks

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