A shark no larger than a human hand that stalked the ancient sea floor 340 million years ago has been dubbed the “chipmunk ...

The newly identified shark had an estimated length of only 8 to 10 centimeters (3 to 4 inches). It belonged to a group of ...

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 who found its fossils in Kentucky.

This isn’t the first time that a new species of ancient shark has been discovered lurking in the limestone of Mammoth Cave. As part of the Paleontological Resources Inventory – an ongoing ...

Members of the obruchevodid petalodont species are nicknamed "chipmunk sharks" because of their small size and chisel-like front teeth and crushing back teeth.The sharks only measured 3-4 inches ...

These sharks grew to just 3 to 4 inches (7.5 to 10 centimeters) long and fed on crustaceans, worms and other prey on the seafloor, according to a statement released by the National Park Service (NPS).

Researchers have discovered a new-to-science species of ancient shark during an ongoing paleontological resource inventory at Mammoth Cave National Park. The new species of obruchevodid petalodont ...

This “chipmunk shark” packed quite a punch with its strange set of teeth. ... 340 million years ago, “sharks were doing everything,” Toomey told the Herald-Leader in an interview Tuesday.

When living things are faced with dramatic shifts in the world around them, they sometimes rapidly adapt to better survive.

The newly identified shark had an estimated length of only 8 to 10 centimeters (3 to 4 inches). It belonged to a group of sharks known as obruchevodid petalodonts, or chipmunk sharks, because of ...