Two duck-billed dinosaur carcasses were preserved in a thin layer of clay for 66 million years. Now, they’ve helped ...

Millions of years ago, dinosaurs ruled the Earth with incredible adaptations that helped them survive. When they disappeared, ...

A clay layer one-hundredth of an inch thick preserves the fleshy details of dinosaurs buried suddenly in east-central Wyoming ...

A fossil site in New Mexico with numerous dinosaurs, including the gargantuan Alamosaurus, dates to shortly before the ...