Notable for “a unique tooth whorl,” the Macadens olsoni possessed a curved row of teeth that helped the tiny shark crush ...

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

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

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

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

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

A newly identified species of ancient shark has been discovered at Mammoth Cave National Park, marking another significant ...

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

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

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

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

Researchers named the latest ancient shark discovery Macadens olsoni, as a tribute to both the Mammoth Cave and Rickard Olson ...