Purussaurus

The Purusaurus was a giant crocodile that lived in South America during the Miocene (about 8 million years ago). It is not a dinosaur; it lived much later, after the dinosaurs became extinct, and is one of the largest crocodiles that ever lived. It was the top predator of the Amazon basin, hunting giant turtles, fish, and mammals. Its bite force is about 69,000 Newtons, surpassing that of the Tyrannosaurus rex.