A small, toothy dinosaur known as Eoraptor, long considered to be the earliest member of the predatory branch of the dinosaur tree, is revealed to have traits that instead place it at the base of ...

A restoration of Nyasasaurus in its Middle Triassic habitat, based on the known bones and comparisons to closely related forms. Art by Mark Witton. For the past twenty years, Eoraptor has represented ...

Even with its neck lowered, the Diplodocus towers over the Eoraptor at the new David H. Koch Hall of Fossils. Correction: The original article included incorrect information about when T. rex lived ...

The earliest known dinosaurs roamed what is now Argentina 228-million years ago, but they may have been a bit lonely, according to paleontologists who published an article on their findings Thursday.

Tracking the origin of the dinosaurs has been one of the most difficult tasks paleontologists have faced, but since the 1990s, multiple discoveries in South America have provided scientists with a ...

WASHINGTON — A team of scientists working in Argentin has found the closest thing yet to the granddaddy of all dinosaurs, an artful dodger that was about the size of a small dog and sprinted after ...

Researchers have discovered what may be the earliest dinosaur, a creature the size of a Labrador retriever, but with a five foot-long tail, that walked the Earth about 10 million years before more ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...

Dinosaurs are one of the biggest land-dwelling animals to ever exist on Earth. Starting off from tiny dinosaurs that came up to your knee to the largest ending up as soaring towers. Here is why some ...