Roughly 252 million years ago, Earth experienced its deadliest known extinction. Known as the Permian–Triassic Mass ...

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

Paleontologists know the bone bed as PFV 393. The late fossil preparator Bill Amaral found the site in 2011 on a field trip ...

The molten rock was hot enough to melt the surrounding rocks and release massive amounts of carbon dioxide into Earth's ...

Paleontologists have uncovered in Arizona a Triassic treasure trove of fossils dating back 209 million years ago.

Researchers were able to date the fossil of the flying reptile, a close cousin of dinosaurs, back to more than 209 million ...

In the case of the Permian–Triassic mass extinction, plants were unable to respond on as rapid a time scale as 1,000 to 10,000 years. This resulted in a large extinction event.

Around 252 million years ago, Earth went through its most devastating extinction event, the Permian–Triassic Mass Extinction ...

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 ...

Found deep in the backcountry of the Petrified Forest National Park and uncovered by a volunteer in Washington, the specimen ...

The collapse of tropical forests during Earth's most catastrophic extinction event was the primary cause of the prolonged ...