Forums SEASHELL-COLLECTOR

I regularly recover tiny triangular shells (bivalves?) at archaeological sites on the gulf coast of Florida. No one seems to be able to ID them. Can someone help? Size is about 1 cm long and .5 cm wide. I can't seem to upload a photo, so, here is a link to the photos online.
https://picasaweb.google.com/10690594991...directlink

If you need more information, please let me know. I would really like to find out what these are. It is driving me crazy.

Thank you for any help you can give.

Look like small "PEN" shells to me. Can't help further I'm afraid.
Sorry
Paul

Thanks Paul,
I did not consider a pen, because they are typically large shells. But, they are very similar in shape, possibly juveniles. Thanks for your input.
Lori