A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said.

The species, Macadens olsoni, was found in the Ste. Genevieve Formation, rock layers dating back roughly 335 to 340 million ...

A 340-million-year-old shark species has been identified through a fossilized tooth found in Mammoth Cave National Park, ...

MAMMOTH CAVE, Ky. — A new-to-science species of ancient shark was recently discovered in Mammoth Cave National Park in ...

The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed ...

“ Macadens olsoni is notable for its unique tooth whorl, a curved row of teeth designed for crushing small sea creatures.

(WJW) — Scientists have discovered a new species of ancient shark. According to the National Park Service, the shark’s ...

In its 37th year, Shark Week is the Discovery Channel's annual weeklong slate of shark-related programming. This year's event kicked off Sunday, July 20, with "Dancing With Sharks," an inter-species ...

The ancient shark species, known as Macadens olsoni, “is notable for its unique tooth whorl, a curved row of teeth designed ...

A new species of shark was discovered in Kentucky's Mammoth Cave National Park. The ancient shark is called a "Macadens ...

This is the second ancient shark species recently found in a rock layer in Mammoth Cave National Park. New details emerge ...

LEXINGTON, Ky. (AP) A miner has found a fossil from a shark jawbone deep in a central Kentucky mine and now it is on display at the University of Kentucky. The fossil was found in February in Webster ...