A Smithsonian-led research team has discovered the oldest known pterosaur in North America, a sea gull-sized winged reptile ...

Buried for 209 million years, a tiny flying reptile and its ancient neighbors just emerged from Arizona’s Triassic past.

In the remote reaches of Arizona s Petrified Forest National Park, scientists have unearthed North America's oldest known pterosaur a small, gull-sized flier that once soared above Triassic ecosystems ...

Fossils of the pterosaur were discovered in Petrified Forest National Park. The fossils date back 209 million years.

A team of scientists teamed up to date and identify the collection of more than 6,000 fossils, placing them between 131,000 ...

Turtles have been around for 200 million years—outliving dinosaurs, surviving ice ages, and basically minding their own ...

T housands upon thousands of prehistoric animals are pristinely preserved at the site of an ancient sinkhole-pond in the US. The mind-blowing site is a snapshot of a beautiful ecosystem that thrived ...