4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum It was first discovered in

It was first discovered in the 19th century in the United States and was originally mistaken for a prehistoric reptile

Its attractive color and luster make it popular for gemstones and jewelry

The hexagonal shape of each cell

a member of the largest and best-known genus of Permian seed ferns (Glossopteridales)

Mosasaurs were the largest lizards to ever live

4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum It was first discovered inLocation: Fort Drum, Florida, United States Weight: 12. 5 Ounces Dimensions: 4 Inches Long, 3. 6 Inches Wide, 2 Inches Thick The item pictured is the one you will receive. Mercanaria Clams are an extinct genus of marine bivalve mollusks that lived during the Miocene epoch, approximately 20 million years ago. They belong to the family Mercanariidae, a group of fossil clams primarily found in the Middle to Late Miocene sediments of the Florida platform.