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 destined soon to vanish lived alongside newcomers early in the age of dinosaurs.
The remains of the pterosaur, roughly the size of a small seagull, and the other creatures were discovered in Petrified Forest National Park, a place famous for producing fossils
