A Smithsonian-led team of researchers have discovered North America's oldest known pterosaur, the winged reptiles that lived ...

Overshadowed by the Grand Canyon, this quiet desert park might just surprise you. From rainbow-colored badlands to Route 66 ...

Smithsonian researchers have linked discoveries within Arizona’s Petrified Forest National Park with a previously unknown ...

A fossil from a seagull-sized winged reptile that lived millions of years ago was found in Arizona, and the creature has now ...

The gull-sized pterosaur was found at the Petrified Forest National Park in Arizona along with hundreds of other fossils ...

Eotephradactylus mcintireae’ is the oldest-known flying reptile from the continent and roamed the skies 209 million years ago.

Paleontologists know the bone bed as PFV 393. The late fossil preparator Bill Amaral found the site in 2011 on a field trip to unearth new fossils that might provide information about the origins of ...

Researchers were able to date the fossil of the flying reptile, a close cousin of dinosaurs, back to more than 209 million years ago.

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

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

Petrified Forest National Park is world- renowned for its petrified wood deposits, but much less known for its mining history and potash deposits.

A rare Triassic fossil site reveals North America's oldest known pterosaur, Eotephradactylus mcintireae, in what was once a ...