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

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

The discovery of Ahvaytum bahndooiveche, a 230-million-year-old dinosaur in Wyoming, reveals dinosaurs existed in the ...

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.

Paleontologists released a new report last week showing that the earliest dinosaur ever discovered in North America is from ...

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

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

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

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

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 ...