The ancient shark species, known as Macadens olsoni, “is notable for its unique tooth whorl, a curved row of teeth designed for crushing small sea creatures,” Mammoth Cave National Park said ...

The roughly half-inch tooth from the uncovered species, named the Macadens olsoni, was found in the depths of Ste. Genevieve Formation at Mammoth Cave National Park in Kentucky.

The shark species was named after Mammoth Cave and Rickard Olson, a retired park scientist, “who played a crucial role in documenting shark fossils in the park as part of a recent ...