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

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

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

T he oldest equatorial dinosaur in the world, and North America's oldest dinosaur, has been described in a new study. Dating ...

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

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

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

Meet Fona herzogae: the tiny dinosaur that burrowed its way into paleontological history—who rewrote just about everything we know about survival in the age of giants.

Nearly 200 Jurassic footprints found in southern England reveal new insights into 166 million-year-old prehistoric creatures, ...

A newly discovered dinosaur, uncovered by UW-Madison paleontologists, is reshaping the understanding of prehistoric reptiles.

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

These footprints offer an extraordinary window into the lives of dinosaurs,” one micropaleontology professor said.