Fossils identified as a new species after being discovered in Wyoming are estimated to be around 230 million years old.

The researchers also found evidence that silesaurids, long thought to be cousins of dinosaurs, might actually be ancestors of ornithischians. This finding could help explain why ornithischians are ...

“While Europe and North America generally have a pretty good fossil ... These are thought to have been small, dog-sized omnivorous animals that walked on two legs. At first, all dinosaurs are thought ...

Dinosaurs roamed the northern hemisphere millions of years earlier than previously thought, according to new research. Fossils identified as a new species after being discovered in Wyoming are ...