Bivalve "scallop" Peru

[Dennis Richards]

Hi

I recently obtained this specimen at a street market in Peru. Its 5cm x 4cm.

Looks scallop or oyster like.

Any ideas on id and age?

Regards

Dennis

[Miocene_Mason]

Looks like a spiny brachiopod, I'm not great with the genuses though.

[Dennis Richards]

I thought it must be a bivalve; symmetry is left & right along the hinge line.  So oyster, clam, scallop-like

[abyssunder]

There are also spiny bivalves which might look like your specimen, for example Spondylus (the thorny oyster). (Look at the history)

 

Could you provide images from different angles?

[Dennis Richards]

[Dennis Richards]

[Dennis Richards]

[abyssunder]

The valves are still attached, but it could be a spondylid.

I would like to compare it with the specimen from Figure 2. The spines might be broken.

 

 

comparative specimen from here

 

[Dennis Richards]

Sure, there is quite a resemblance isn't there to Spondylus calcifer? (without the spines).  And there is an important link to Peru/Ecuador where I bought this fossil.

Thanks for your investigation

Regards, Dennis