More than a century ago prolific fossil collector Charles Sternberg discovered the skeleton of a duck-billed Edmontosaurus ...

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

Exceptionally preserved “dinosaur mummies” of the duck-billed Edmontosaurus have unveiled the first-known reptile hooves, ...

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

The skeletons of a duck-billed dinosaur found more than 100 years ago are so well-preserved that they contain fleshy body ...

Scientists discovered that some dinosaur “mummies," such as Edmontosaurus annectens, weren’t preserved skin but clay molds ...

Researchers have unearthed two dinosaur "mummies" in the badlands of Wyoming, confirming duck-billed dinosaurs had hooves, alongside a string of other discoveries.

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

Learn about the mummified dinosaurs that have had their features preserved in a layer of clay after being submerged in ...

A recent study suggests the unique geology of an area in Wyoming makes it a trove of unusually preserved fossils ...

In a new paper in Science, experts from the University of Chicago describe steps that took place some 66 million years ago to ...

A team from the University of Chicago has achieved an unprecedented feat by analyzing two exceptional fossils in Wyoming ...