Fossilized Panopea Clam

A nice intact cast (organism not shell) clam fossil. This species would have gained food by filtering the water. This organism would have lived in the lower Cretaceous Period making it 65 million to 136 million years old (the late dinosaur era). Found at Monroe Bay, Westmoreland County, Virginia along the Potomac River. Measurement is 6 inches long by 4 inches wide by 3 inches thick.