In the depths of the world's longest cave, researchers have uncovered the fossilized remains of a 340-million-year-old shark.

Paleontologists at Mammoth Cave National Park have unearthed an ancient shark species previously unknown to science.

Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

Rendering courtesy of the National Park Service A shark no larger than a human hand that stalked the ancient sea floor 340 million years ago has been dubbed the “chipmunk shark” by researchers ...

It belonged to a group of sharks known as obruchevodid petalodonts, or chipmunk sharks, because of their tiny size and unusual teeth. The shark's back teeth had flat crowns and long bases ...

An ongoing Paleontological Resource Inventory discovered the new species, called Clavusodens mcginnisi, while collecting ...

long – certainly not big enough to swallow you – this led them to nickname it the “chipmunk shark”. The McGinnis’ nail tooth shark also belongs to a group of jawed, cartilaginous fish ...

A new species of shark has been discovered a Mammoth Cave National Park, where fossil records have revealed more than 70 ...

MAMMOTH CAVE, Ky. (WBKO) – Fossils from a previously unknown species of shark have been unearthed at Mammoth Cave National Park, shedding new light on ancient marine life.

Skeletal reconstruction and tooth arrangement of Netsepoye from the Late Mississippian of Montana. Teeth are arranged as if ...

SILVER CITY, N.M.— Following a decade of advocacy from the Center for Biological Diversity and allies, the U.S. Fish and Wildlife Service today added the Peñasco least chipmunk of southeastern New ...