A member of the Pterosaur family, which surprisingly weren’t technically dinosaurs, the Quetzalcoatlus makes the more famous Pterodactyl look tiny in comparison to its massive nature. The largest creature to ever fly in the Earth’s skies, its wingspan was roughly thirty-five feet and it boasted a weight of between 450 and 550 pounds. Towering over even the biggest dinosaurs it hunted in, it would have the ability to land wherever it liked and just pick off the prey that looked the most appealing.