Fossils reveal that giant predatory sharks existed 15 million years before megalodon and were already top predators in Cretaceous seas.

Quick Take New vertebrate fossils reveal a more ancient mega-shark years before Megalodon This mega-shark was found in Australia The finding rewrites the historical timeline of shark evolution Long ...

WELLINGTON, New Zealand (AP) — In the age of dinosaurs — before whales, great whites or the bus-sized megalodon — a monstrous shark prowled the waters off what's now northern Australia, among the sea ...

A monstrous shark, predating whales, great whites, or even the bus-sized megalodon, once prowled the waters off what is now northern Australia during the Cretaceous period. Researchers, studying huge ...