Pelecypod
(Clam) Fossils Roger Weller, geology instructor
wellerr@cochise.edu copyright 2008-R.Weller
oyster-2
Ostrea carolinensis
St. Marys Formation, Calvert Cliffs State Park, Maryland
Length is 13 cm.

Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.
Fossil and identification courtesy of Larry Hampton