4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum Total Weight: 3 Pounds 8

Total Weight: 3 Pounds 8

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

allowing millimeter-thick limestone layers to accumulate gradually

7 feet tall at the hips

The hexagonal shape of each cell

4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum Total Weight: 3 Pounds 8Location: 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.