Edmontosaurus annectens, a large herbivore duck-billed dinosaur that lived toward the end of the Cretaceous period, was ...

A paleontologist was trying to locate the site of a famous 1908 discovery when a rancher in Wyoming shared an important clue.

Researchers now have a new idea of what a certain type of duck-billed dinosaur looked like, thanks to experts from the University of Chicago who uncovered dinosaur mummies.

Two fossilized “mummies” unearthed by scientists in the badlands of Wyoming of the duckbilled dinosaur Edmontosaurus reveal the external anatomy in exquisite detail, including the surprising presence ...

You might not think a paleontologist looking for 66-million-year-old fossils would need to ask a rancher about his great-grandmother's job in the Wyoming badlands. But that's what Paul Sereno, a ...