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

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

A team of researchers led by the Smithsonian has discovered the oldest known pterosaur fossil in North America. Pterosaurs were flying reptiles that lived alongside dinosaurs and were the first ...

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

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

Many American schoolchildren grow up learning that Yellowstone was the world’s first national park. But across the globe in Mongolia, just south of the capital, Ulaanbaatar, a mountain holds a claim ...

Fossils of trees and a desert with red, tan and lavender shades await visitors at Petrified Forest National Park, about 116 ...

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

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

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

Scientists identify the oldest flying reptile in North America, discovered in Arizona and dating back 209 million years.