Safari Ltd Wild Dinosaurs Megalodon Each replica comes with 5-language educational hangtag. The creatures in this collection are some of the largest models you can find, making them perfect for educational use and active play. It was known for its monstrous appearance and was approximately 59 feet long. Vastly outweighing both the modern Great White Shark and ancient reptiles like Liopleurodon and Kronosaurus. Megalodon was the biggest prehistoric shark that ever lived; it was the largest predatory marine creature in the history of the planet.