Paleontologists have uncovered in Arizona a Triassic treasure trove of fossils dating back 209 million years ago.

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying ...

Scientists have discovered a new species of pterosaur – a flying reptile that soared above the dinosaurs more than 200 ...

Researchers have discovered a new species of pterosaur - a winged reptile that lived alongside dinosaurs 200 million years ...

Smithsonian scientists have uncovered North America’s oldest known pterosaur from a 209-million-year-old bonebed in Arizona’s Petrified Forest National Park.