Tropeognathus

Tropeognathus was a large pterosaur (not a dinosaur) that lived in South America during the Early Cretaceous Period (about 112 million years ago). It had large crests on the top and bottom of its snout, which would have helped it cut through the water to catch fish. It had a very large wingspan of 8.2 meters, and it hunted fish by flying over open water.