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

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

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 ...

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 ...

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

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

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 ...

Researchers have discovered a new species of pterosaur - a winged reptile that lived alongside dinosaurs 200 million years ...

By combining information about pterosaur and lagerpetid fossils with climate data from more than 200 million years ago, a team of scientists have looked at where these animals lived during the ...

Federal officials are seeking prosecutions for four human-caused wildfires that burned through southeastern Arizona this spring, according to the U.S. Forest Service. Human activity started the ...