Ostrea compressirostra

Ostrea compressirostra is a species of prehistoric saltwater oyster, a fossil that is found in the Yorktown Formation, Chowan River Formation, Waccamaw Formation, and their equivalents in Virginia, North Carolina, South Carolina, and Georgia (U.S. State).^[2] Its maximum size is roughly 15 centimetres (5.9 in) in length.

Ostrea compressirostra Temporal range: Zanclean to Gelasian ~4.5 Ma to 1.8 Ma[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Ostreida
Family:	Ostreidae
Genus:	Ostrea
Species:	O. compressirostra
Binomial name
Ostrea compressirostra (Say, 1824)
Subspecies
O. c. geraldjohnsoni O. c. brucei