An almost complete skeleton of a Cretaceous shark has been uncovered in Mexico. The find sheds light on what the prehistoric relative of the great white looked like.
During the Cretaceous Period, a genus of sharks roamed the sea with rows of unusual teeth. Mostly large and rounded, these chompers were not meant to slice through their prey, but to grind and crush shelled creatures. However, since the sharks’ presence in the fossil record has mostly consisted of isolated teeth, scientists have been left to speculate on what the rest of this ancient predator looked like since its discovery in the 18th century.
The outline of the body, which revealed the shark’s shape and fin location, also provides evidence that the prehistoric fish was not just a bottom-dweller as previously believed, but instead, a fast-swimming predator that might have hunted and eaten sea turtles and large ammonites instead of only eating mollusks found on the ocean floor, according to the study authors.
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