4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia this mosasaur was long suspected

this mosasaur was long suspected to be a shell-crushing hunter due to its massive jaws and heavily built teeth

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

These fossil clams are easily recognized by their distinctive shell shape and the presence of three to four cardinal teeth on each valve

meaning “plant reptile”—phytosaurs were carnivorous predators

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

4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia this mosasaur was long suspectedLocation: 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,