Borealosuchus

Borealosuchus was a large crocodilian that swam the Late Cretaceous rivers and seaways in North America, about 65 million years ago. It was a mid sized marine predator, reaching lengths of about 10 feet and possibly weighing up to 400 pounds. Like modern crocodilians, Borealosuchus would have most likely used ambush techniques to attack and prey on unsuspecting small dinosaurs, reptiles, and birds.