Scientists have identified a new species of pterosaur from a fossilised jawbone discovered deep in the Arizona desert. The find, in the Grand Canyon State's Petrified Forest National Park, marks the oldest-known pterosaur species in North America.

Scientists have discovered a new species of dinosaur — one that was dog-sized and roamed what is now the United States around 150 million years ago alongside familiar dinosaurs like stegosaurus and diplodocus.

New species of flying reptile that lived among dinosaurs 200 million years ago discovered - Scientists uncovered the the fossilised jawbone of the creature in Arizona