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

Buried for 209 million years, a tiny flying reptile and its ancient neighbors just emerged from Arizona’s Triassic past.

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.

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

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

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

An artist's depiction of a landscape from 209 million years ago at Petrified Forest National Park in Arizona, based on fossils of plants and animals ...

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 ...

Ben Kligman, a Peter Buck Postdoctoral Fellow and paleontologist at the Smithsonian’s National Museum of Natural History, ...