4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia Its relatively simple digestive system

Its relatively simple digestive system

Some types glow blue or red when exposed to UV light

The only real vulnerability was its soft underbelly—if a predator managed to flip it over

meaning “plant reptile”—phytosaurs were carnivorous predators

Rebbachisaurus—known as the "Aït Rebbach lizard"—was a sauropod dinosaur from the Diplodocoidea superfamily that roamed Africa

4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia Its relatively simple digestive systemLocation: Speed Quarry, Clark County, Indiana Weight: 3. 4 Ounces Dimensions: 4. 3 Inches Long, 2. 7 Inches Wide, 1. 1 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,