VENICE, Fla. (CBS12) -- A Florida woman found a six-inch-long fossilized megalodon tooth while scuba diving off Florida's Gulf Coast.
On Friday, Kristina Scott of St. Petersburg was scuba diving when she spotted a giant tooth while scanning the ocean floor.
Scott would soon learn that her find wasn't that of a great white or hammerhead, but instead a 6-inch tooth of a prehistoric megalodon.
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According to the Natural History Museum, the megalodon is the largest shark that has ever lived and dominated the earth's oceans 23 million years ago.
The museum says scientists believe the sharks were up to 24 meters long, making them four times larger than the largest recorded great white shark.
While the creature vanished over three-and-a-half million years ago, its fossilized teeth can still be found along coasts around the world.