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 reptile, that reveal a time of transition when venerable lineages that were ...

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

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

New findings may have solved the debate around why scientists have never found the missing link between dinosaurs and ...