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 ...

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 ...

The remains of extinct Homo erectus dredged from the seabed off Java, along with thousands of animal fossils, are revealing a long-lost ecosystem.