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

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

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

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, ...

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

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

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 ...

The new species is just one in a whole treasure trove of ancient sharks that have been uncovered within the world’s longest ...

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