WASHINGTON (Reuters) -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 ...

PHOENIX — Fossils from the Petrified Forest National Park, in northern Arizona, revealed a new reptile species that thrived during the Triassic Period. Paleontologists and partners with the ...

Tucked away in a remote bonebed in Arizona's Petrified Forest National Park laid hundreds of fossils, including a fragile jawbone belonging to one of the oldest-known flying reptiles: the pterosaur.

Kay Behrensmeyer, curator of vertebrate paleontology at the Smithsonian’s National Museum of Natural History, is shown in Arizona’s Petrified Forest National Park. Photo by Ben Kligman A fossil from a ...

Imagine an ear falling off a first century Roman statue and you’ll get an idea of what someone found at the Lake Mead National Recreational Area in Arizona. Photos of the fossil — yes, it’s assumed to ...

Sonoran Desert Toad Psychedelics, 50 Years of Tucson Bonsai, Fossil Collection, Raquel Gutierrez. This week on Arizona Illustrated…how demand for a psychedelic substance could spell trouble for the ...

A fossil from a seagull-sized winged reptile that lived millions of years ago was found in Arizona, and the creature has now been identified as a new species. The new type of pterosaur, named ...