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 ...

The oldest dinosaurs yet discovered date back nearly 230m years to the Late Triassic epoch. Fossils of Herrerasaurus and Eoraptor were discovered in Argentina; both were bipedal carnivores ...

What may be the earliest known relative of T. rex and all meat-eating dinosaurs has been discovered. The dog-sized mini-predator would've made its future relatives proud as it fed on small dinosaurs ...

Two nasty looking little critters that roamed a remote valley of Argentina 230 million years ago point to a key fork in the road of early dinosaur evolution, when some predatory dinosaurs turned away ...

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 ...

Two nasty-looking little critters that roamed a remote valley of Argentina 230 million years ago point to a key fork in the road of early dinosaur evolution, when some predatory dinosaurs turned away ...

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 ...

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 ...

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What the name means "early plunderer" or "dawn plunderer" Named by Sereno, Forster, Rogers and Monetta (1993) Where found Argentina Length up to 1m Height 1m Weight 10kg How it moved on two legs Teeth ...