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

A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

Some 66 million years ago, just before the great extinction, the duck-billed dinosaur Edmontosaurus ... badlands in Wyoming where the finds were made is a unique ‘mummy zone’ that has more surprises ...

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

A 10-year-old girl out on a shoreline stroll on a Wales beach literally stumbled upon five prehistoric dinosaur footprints. Experts believes the footprints come from the camelotia dinosaur, a ...

In the badlands of eastern Wyoming, the Lance Formation is a trove of prehistoric fossils. And one area in particular — a region less than 10 kilometers (6 miles) across — has provided scientists with ...

Newtonsaurus cambrensis is very large, larger than most, if not all, contemporary predators. For a therapod dinosaur from the Triassic era to be so large is essentially unprecedented. Scientists in ...

In the arid hills of northwestern New Mexico, a discovery is reshaping one of the most enduring narratives in natural history ...

Anyone who has ever flipped open a dinosaur book is likely familiar with pachycephalosaurs. These dome-headed dinos are often depicted ramming the tops of their bowling-ball-like skulls into predators ...

Scientists have announced the discovery of damaged hemoglobin in the hollow, blood vessel–like structures of dinosaur fossils. The researchers used a novel technique they hope may put an enduring ...

SOUTHINGTON - The first day of a week-long archaeological expedition in Montana, Cheshire Academy senior Aidan Connor made his greatest discovery yet: a dinosaur bone the size of his pinkie finger. "I ...