4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Fossil Leaf approximately 68 million years ago

approximately 68 million years ago

which made them highly fossilizable and left a rich record in ancient seas

The Cephalon (Head Shield): A highly evolved structure featuring sophisticated compound eyes (in most species) with prismatic calcite lenses

Holocystites has sometimes been conflated with crinoids due to their shared echinoderm heritage and stalked attachment to the seafloor

Such associations provide valuable insight into the ecological interactions between Eocene flora and fauna

4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Fossil Leaf approximately 68 million years agoLocation: Speed Quarry, Clark County, Indiana Weight: 7. 5 Ounces Dimensions: 4. 3 Inches Long, 3. 1 Inches Wide, 2. 2 Inches Thick Middle Devonian Age 380 Million Years Old The item pictured is the one you will receive. Colonial Rugose Fossil Coral (Prismatophyllum Prisma) Dare to own a relic from one of nature's boldest experiments in reef formation. During the Devonian period410 million years agocorals entered the oceans with remarkable force,