Fossilized bivalves formed when the clams were covered by sediment that hardened into rock. These fossils were discovered in Madagascar and date back to the Late Jurassic Period. They are polished and range in size from 2.5-3.5 inches. They are fascinating relics that show evidence of their age. This listing is for 1 fossilized bivalve clam. Use the dropdown menu to select from available options.
