Just a few fossil fragments of a tiny creature discovered thousands of miles north of its contemporaries have shaken our ...

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

The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians, and reptiles. Dinosaurs ruled the Earth in the mighty Mesozoic. And 64 million years after dinosaurs went ...

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

Non-bird dinosaurs lived between about 245 and 66 million years ago, in a time known as the Mesozoic Era. This was many millions of years before the first modern humans, Homo sapiens, appeared.

It could change our understanding of animal timelines throughout the history of our planet, with these dinosaurs potentially ... known as the Mesozoic Era, as part of the research too before ...

Volcanic activity in India altered the climate but didn't kill the dinosaurs; the Chicxulub meteorite did, by triggering an ...