Description
Gryphaea convexa (Oyster shell fossil)
The oysters were the most common bivalves of the Cretaceous period. Lying on the seabed floor with the convex side in the mud and the flat side positioned at the seafloor surface for camouflage, gryphaea convexa were often found in large numbers where the shell beds are exposed along the stream banks.
In very good condition, complete, with both shells intact.
FOSSIL PERIOD
Cretaceous
FOSSIL ORIGIN
Alabama, US