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

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

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

A new species of shark was discovered in Kentucky's Mammoth Cave National Park.The ancient shark is called a "Macadens Olsoni."Experts say it had a distinct curved row of teeth, used to crush small ...

Many visitors expect to see stalactites and stalagmites galore in Mammoth Cave but are surprised when they don't see many of ...

The Macadens olsoni fossils were found in the Ste. Genevieve Formation, which dates back approximately 340 to 335 million ...

A newly identified ancient shark species, Macadens olsoni, has been at Mammoth Cave National Park. The National Park Service ...

National Park Service researchers have identified a previously unknown shark species in the limestone walls of Mammoth Cave, ...

Researchers have found an ancient shark fossil in Kentucky’s Mammoth Cave, offering new insight into prehistoric marine ecosystems.

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It's Shark Week, and Mammoth Cave took the unofficial holiday to announce the discovery of a ancient shark species.

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