On August 4, 1915, president Woodrow Wilson created Dinosaur National Monument. In his proclamation, he declared that the ...

An ancient reptile fossil named Gondwanax parisiensis, dating back 237 million years, has been discovered in southern Brazil.

The creature supposedly stood roughly the size of a small dog, weighing around 10 pounds, with a tail that stretched a meter ...

The small reptile would have likely roamed the land of what is today southern Brazil, when the world was much hotter.

The reptile species, named Gondwanax paraisensis, had four legs. Its size was quite similar to that of a small dog having a ...

Paleontologist Rodrigo Temp Muller with Universidade Federal de Santa Maria, working with colleagues in Brazil, has confirmed ...

So far, what Gondwanax and its fellow silesaurids reveal is that the rise of the dinosaurs wasn’t a sudden, dramatic event.

One of the oldest fossils ever discovered in the world might just help paleontologists finally unravel the mystery of how ...

Evidence suggests that “the precursors to the dinosaurs and pterosaurs were much more diverse than previously imagined.” ...

An "agile and lightweight" predecessor to the dinosaurs - dating back 237 million years - has been discovered in Brazil.

The newly-discovered creature, known as Gondwanax paraisensis, lived around 237 million years ago and is believed to be an ...