Around 200 million years ago, during the Mesozoic Era ... "These findings not only shed light on a critical moment in Earth's geological history but also demonstrate the persistence of landforms ...

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

One of Earth's regions, known as the African domain ... which formed around 335 million years ago and began breaking up 200 million years ago. "What we observe today is essentially the result ...

Our planet's Moon might look dead and stagnant from our vantage point here on Earth, but a new study suggests it was moving about just a 'hot minute' ago.

How and when dinosaurs first emerged and spread across Earth more than 200 million years ago has been a source of debate among paleontologists for several years. The mainstream view has held that ...