A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like ...

A pair of Edmontosaurus specimens found in a Wyoming dig help researchers to understand the process that led them to be ...

Long before horses thundered across the plains, a plant-eating giant with hooves of its own left footprints in the mud. Newly ...

Wyoming’s “dinosaur mummies,” once thought to preserve fossilized flesh, are actually detailed clay molds formed by microbes ...

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

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

New research in a North American “mummy zone” in eastern Wyoming reveals how giant duck-billed dinosaurs were preserved in striking detail.

To gain a better understanding of the creature, a team at the University of Chicago led by anatomist Paul Sereno tracked down ...

Edmontosaurus, which munched plants with its broad and flat snout that vaguely resembled a duckbill, roamed western North ...

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

But the most intriguing find is that the toes of Edmontosaurus' hind feet are capped in hooves. This marks not only the first ...

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