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

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,

Paleontologists at Mammoth Cave National Park have unearthed an ancient shark species previously unknown to science.

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.

A tiny shark species dating back hundreds of millions of years has been identified at Mammoth Cave National Park in Kentucky, the National Park Service announced Monday.

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

Mammoth Cave National Park in Kentucky celebrates the world’s longest known cave system at over 426 miles (686 km), home to unique wildlife (eyeless fish and transparent cave shrimp), unique history (saltpetre mining and TB huts),