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Hi Avril,

Thanks for your help with the echinoderm fossils. I sent the pictures to Henk, and he gave me some interesting information.

Attached is a picture of a bi-valve fossil. Once again, from the same area of south Yemen as the sea urchins. Appreciate your help in identifying and dating it.

Best Regards.......Jamshed.

Send Ideas to: Jamshed

Identified:

Discussions:

• I suspect this is a corbulid; the left valve appears smaller and the umbo of the right valve is more inflated than the left. Corbulidae have been around since at least the late Cretaceous...Andrew G.