These are 100% authentic Megalodon shark teeth found diving off the coastal waters of South Carolina. The Megalodon could grow in excess of 60 feet long and could weigh over 20 tons. They carried a deadly arsenal of 184 razor sharp teeth. These teeth could grow to be over 7 inches long. Megalodon was the top predator in our oceans between approximately 2-15 million years ago. They ate everything from Whales and Dugongs to Giant Squids.