Tiny footprints from Poland show that the first dinosaurs were extremely small animals that walked on four legs — and probably only came to rule the world after a mass extinction knocked out many big ...

Scientists have unveiled Enigmacursor mollyborthwickae, a small, fast-moving dinosaur that once roamed the floodplains of Colorado during the Late Jurassic period. Measuring about three feet long, the ...

Footprints of small dinosaurs, 250 million years old. Oct. 6, 2010— -- It was 250 million years ago, and the world had just been through hell. Something -- perhaps an asteroid impact, perhaps a ...

A cat-sized dinosaur, Enigmacursor mollyborthwickae, unearthed in Colorado, is revolutionizing our understanding of small Jurassic herbivores. This swift runner, now in London, provides crucial ...

BUENOS AIRES — Palentologists have identified a new dinosaur species after uncovering the fossilized remains of an armored, house cat-sized creature in Argentina. Argentinian scientists presented an ...

Palentologists have identified a new dinosaur species after uncovering the fossilized remains of an armored, house cat-sized creature in Argentina. Palentologists participated in multiple digs over 10 ...