4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum The hexagonal shape of each

The hexagonal shape of each cell

Habitat and Distribution

allowing millimeter-thick limestone layers to accumulate gradually

many large mammals faced challenges that ultimately led to their decline

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

4" Mercenaria Permagna Clam Fossil Golden Calcite Crystal Rucks Pit Florida Scabriscutellum The hexagonal shape of eachLocation: 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.