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

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

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

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

Researchers at Edinburgh University harness new laser technology to discover large sail-like ‘vanes’ at the end of the ...

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

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

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.

“We have, with these fossils, the oldest equatorial dinosaur in the world — it ... measured roughly three feet in length from head to tail. Evidence suggests that Ahvaytum lived in Laurasia ...

An analysis of the fossil remains — discovered ... size of a chicken but with a really long tail,” Lovelace said. Researchers said the small dinosaur is likely an early sauropod relative.