What kind of creatures were kicking about in the oceans 340 million years ago? We’ve now got a slightly clearer picture thanks to the discovery of a small but mighty ancient shark species found fossilized in the depths of the world’s longest cave system,

An ongoing Paleontological Resource Inventory discovered the new species, called Clavusodens mcginnisi, while collecting fossil teeth deep inside a formation with the cave system.

A new species of shark has been discovered a Mammoth Cave National Park, where fossil records have revealed more than 70 species of shark that swam in the ocean when this part of present-day Kentucky was under water about 340 million years ago.

Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about a mysterious group of extinct predators.

The Chipmunk Shark was believed to have swam along the ocean floor that is said to have covered much of central Kentucky during the Middle Mississippian period, officials claim.