Add Yahoo as a preferred source to see more of our stories on Google. Artist's reconstruction of a landscape dating to 209 million years ago at the site of Petrified Forest National Park in Arizona By ...

New fossil find: Researchers uncovered a new species, Akidostropheus Oligos, a tiny spiked reptile from 220 million years ago, in the park’s Thunderstorm Ridge area. Deep time revealed: The park’s ...

When you get to the Grand Canyon and gaze out at the incomprehensibly large sight in front of you, you might not even notice the life right beneath your feet. When you stand on the rim of the canyon, ...

Tucked away in a remote bonebed in Arizona's Petrified Forest National Park laid hundreds of fossils, including a fragile jawbone belonging to one of the oldest-known flying reptiles: the pterosaur.

PHOENIX — Fossils from the Petrified Forest National Park, in northern Arizona, revealed a new reptile species that thrived during the Triassic Period. Paleontologists and partners with the ...

Credit: Abraham Karam A man jumps from a cliff into a pool in Fossil Creek as others look on. Dexter Allen, a Fossil Creek patrol ranger, cleans trash from a firepit after a big weekend. Deep in ...

TEMPE, AZ (AZFamily) — A group of Arizona State University scientists was among a team that uncovered a new species of fossils, shedding more light on human evolution. “This new research shows that ...

These ancient crustaceans are meager in size but mighty in history. A colony of prehistoric triops, a tadpole shrimp that’s existed for hundreds of millions of years, was beautifully captured by ...

PHOENIX — Fossil Creek in central Arizona is reopening to the public after a wildfire forced a closure for nearly a year-and-a-half. All sites, including the Childs Dispersed Camping Area, will reopen ...

WASHINGTON (Reuters) -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 ...