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

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

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 newly-found fossils are 209 million years old and include pterosaurs, primitive frogs and lizard-like reptiles ...

Scientists have found a new species of pterosaur that lived 200 million years ago along with the dinosaurs. The fossilised ...

Scientists have discovered a new species of pterosaur – a flying reptile that soared above the dinosaurs more than 200 million years ago.The jawbone of the ancient reptile was unearthed in Arizona ...

How does it take for an animal to make its mark in history particularly when its bones are as delicate as a potato chip? Eotephradactylus mcintireae’s answer is a mix of volcanic ash, river ...

A delicate jawbone unearthed in Arizona has revealed North America's oldest known pterosaur, a flying reptile no bigger than ...

Toxic chemical releases from Arizona’s industries rose 70% in 2018 from 2017, a new EPA report shows. But the company whose Pinto Valley Mine in Miami is reported to have by far the largest ...