4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia The only real vulnerability was

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

Its relatively simple digestive system

Interestingly Hypacrosaurus and other dinosaurs like it may have actually been prey to Tyrannosaurus and other related genera such as Albertosaurus

Barite loves to show off with its dazzling array of colors and quirky crystal shapes

Some types glow blue or red when exposed to UV light

4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia The only real vulnerability wasLocation: 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,