Looking for dog-friendly national parks in the U.S.? This guide covers where your pup is welcome, what trails allow dogs, and ...

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

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.

The new type of pterosaur, named Eotephradactylus mcintireae, was identified by a Smithsonian-led research team, according to ...

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 ...

A groundbreaking discovery in Arizona’s Petrified Forest reveals North America’s oldest pterosaur.