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.

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 ...

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

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

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

A study published in the Proceedings of the National Academy of Sciences introduced Eotephradactylus mcintireae, the earliest pterosaur yet found in North America and among the oldest recorded ...

Approximately 1.4 million customers across Arizona could soon see higher electricity bills. Arizona Public Service, the state ...

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

The large flying reptiles known as pterosaur preyed on primitive fish that would have hard scale armour covering them.