The fossil was found in the Ste. Genevieve Formation, which dates to approximately 335 to 340 million years ago. It was ...

Researchers have detected a 350-million-year-old shark fossil that lived in the Mammoth Cave System when it was submerged in ...

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

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

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

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

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

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

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

U.S. researchers discovered a new shark species in rock layers at Mammoth Cave National Park in Kentucky, the National Park Service reported. On October 11, which is National Fossil Day ...

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

Scientists have identified a new 335-million-year-old shark species, Macadens olsoni, under Mammoth Cave National Park—one of ...