3.1" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Grposaurus a well-known genus of dragonflies

a well-known genus of dragonflies commonly referred to as skimmers

constantly alert to predators like Tyrannosaurus rex

One of the most remarkable features of trilobites was their hardened exoskeleton

the ammonite shell played vital roles in protection and flotation

The exoskeleton is divided longitudinally into three lobes—a central axial lobe bordered by two pleural lobes—a feature that gives trilobites their name

3.1" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Grposaurus a well-known genus of dragonfliesLocation: Speed Quarry, Clark County, Indiana Weight: 3. 3 Ounces Dimensions: 3. 1 Inches Long, 2. 4 Inches Wide, 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,