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cthamon

Bivalve IDs from SC coast

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cthamon

All of these were found beach combing in Charleston, SC and all were caked with what I believe is limestone. 

 

A. Not sure on this one. Thought clam before pulling away some limestone but now thinking oyster? About 5cm wide.

 

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8EFE2E93-3F49-43C4-9112-F90CC5896E8C.jpeg.92c04ab840703add363524230d28bbb9.jpeg


 

B. Scallops, wondering type and age if identifiable About 3 cm tall.

 

A81CBE40-3D36-481F-BB3E-A94E3E0D1734.jpeg.8603137f697c78d00ff64ceebcb71fe5.jpeg

 

 

C. Was thinking scallop on this one but it doesn’t seem to have the same vertical lines, they’re all horizontal. Roughly 9cm tall.

 

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Thank you all in advance! I’ll be posting some corals and bones tomorrow if I have no luck finding anything myself

4832E81A-3006-4049-8483-A11FC1AD1D3D.jpeg

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fifbrindacier

Hi, A is an Oyster, you're right.

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cthamon

Looking like Actinostreon marshii for the oyster, but SC supposedly has a gap in rock records/fossils between the Cambrian and Cretaceous period. Would this be properly placed in mid Jurassic or is it a similar looking younger species? 

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Rockwood

Ostrea falcata is found in the Cretaceous.

It's not an ID though, just a suggestion.

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Al Dente

The oysters look similar to Conradostrea that I find in the Pliocene of North Carolina. I think the material around Charleston is Oligocene and younger.

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MikeR

My understanding is that renourishment at Folly Beach a couple of years ago brought up a bunch of Upper Pliocene Goose Creek Limestone.  Eric is correct concerning Conradostrea sculpturata.  The pecten is Nodipecten peedeensis.  The other I would need some additional views.

 

Mike

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cthamon
3 hours ago, MikeR said:

My understanding is that renourishment at Folly Beach a couple of years ago brought up a bunch of Upper Pliocene Goose Creek Limestone.  Eric is correct concerning Conradostrea sculpturata.  The pecten is Nodipecten peedeensis.  The other I would need some additional views.

 

Mike

I don’t know if the shape or deep grooves match up with C. sculpturata, potentially O. Locklini? Or C. Lawrencei?

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