With its wings open it was up to 6.25 meters across. "Pteranodon" might have lived much like an albatross, spending a lot of time over the ocean, looking for fish. It had no teeth in its long mouth, and it had a small pouch like a pelican at the back of its jaw. "Pteranodon" had a big crest at the back of its head. "Pteranodon longiceps" had a straight crest that went backwards, and "Pteranodon sternbergi" had a bigger, flatter crest that went upward.