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

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

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

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

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

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.

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

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 ...

There is no better way to discover the USA than by hitting the road — especially along the legendary Route 66.

Looking for a quick vacation? A travel site analysis ranked No. 1 for cheap summer road trips. From Elvis to fossils, see ...