The fossilized remains of a "truly gigantic" ancient sea monster have been discovered by chance in an English museum, revealing one of the largest carnivores to ever stalk the seas.
The four bones are vertebrae from an unknown species of Jurassic predator called a pliosaur and show that the dagger-toothed creatures could grow almost 50 feet (15 meters) long — twice the size of an orca (Orcinus orca). The new finding drastically revises previous estimates for the scale of the prehistoric monsters.
