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.

Researchers have discovered a new species of pterosaur - a winged reptile that lived alongside dinosaurs 200 million years ago. Scientists at the Smithsonian’s National Museum of Natural History uncovered the fossilised jawbone of the creature in 2011,