one of the rarest shark species in this layer—Cretodus," he told Newsweek. Tooth of an ancient shark found in Texas. Tooth of an ancient shark found in Texas. @jcookepaleo/Instagram "I suspect ...

Amateur fossil hunters dream of finding the ancient and the rare. One little ... that's exactly what she found: a tooth belonging to the now-extinct Otodus megalodon shark species.

Sharks are frequently praised for their iconic position and prowess as predators, yet there is a world of extraordinary rarity and mystery hidden beneath the surface of famous species. These ...