With a recent radioisotopic analysis of the fossil specimens dating the remains to around 230 million years old, this tiny ...

Paleontologists say the fossils could prove dinosaurs lived in the northern hemisphere millions of years earlier than ...

A newly identified dinosaur from southwestern China is revealing what appears to be the earliest-diverging ornithischian ...

Researchers discovered Ahvaytum bahndooiveche fossils in Wyoming, revealing dinosaurs in Laurasia earlier than believed.

A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how ...

Learn more about this newly named dinosaur and how it's discovery sheds light on dinosaur evolution.

For years, scientists believed that dinosaurs first emerged in Gondwana—the southern portion of the ancient supercontinent ...

How and when did dinosaurs first emerge and spread across the planet more than 200 million years ago? That question has for ...

This discovery challenges the long-held belief that dinosaurs originated exclusively in the southern supercontinent, Gondwana.

A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early ...

But this is where Ahvaytum may rewrite the origin story because it originates from the North American landmass, which once formed part of Laurasia. At roughly 230 million years old, it is comparable ...

Dinosaurs inhabited the Northern Hemisphere millions of years earlier than scientists previously thought, according to the ...