At a remote bone bed in Arizona, researchers have unearthed North America's oldest known pterosaur, offering groundbreaking insights into the evolution of these ancient flying reptiles. What does this ...

Learn more about Eotephradactylus mcintireae, the oldest Late Triassic Pterosaur in North America that was about the size of sea gull.

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

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 ...

With its unique stand of trees turned into stone, The Petrified Forest between Sonoma and Napa counties is seeking buyers for ...

From unexplained phenomena to baffling disappearances, follow the clues while discovering our country’s treasured protected ...

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

The U.S. Forest Service closed these campgrounds and trails, located northeast of Lake Shasta and near the Green Fire burn ...

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