4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum a member of the largest

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

Habitat and Distribution

allowing millimeter-thick limestone layers to accumulate gradually

444 Million Years

4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum a member of the largestLocation: 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.