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 ...

Fossils of the pterosaur were discovered in Petrified Forest National Park. The fossils date back 209 million years.

Giant, large-scale eruptions can have more serious impacts. One such event contributed to the demise of the dinosaurs 66 ...

Paleontologists in southwestern China have unearthed fossils of *Dinocephalosaurus orientalis*, a 240-million-year-old marine ...

A gull-sized flying reptile has emerged from fossil-rich layers of Arizona’s Petrified Forest, revealing the earliest known ...

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

Measuring shells and skeletons encased in thousands of limestone samples has revealed that the sheer amount of living stuff ...

This ancient reptile’s jawbone was unearthed in Arizona in 2011 and was confirmed to be a new species with the aid of modern ...

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

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 ...