A nearly complete dinosaur skeleton discovered in Patagonia is helping scientists crack the mystery of alvarezsaurs, a bizarre group of bird-like dinosaurs. The fossil of Alnashetri cerropoliciensis ...

This specimen, given the nickname “Alna,” was unearthed in sandstone at a site called La Buitrera in northern Patagonia.

When you imagine a dinosaur, chances are your brain goes to those giants of the era: T. rex, Brontosaurus, Triceratops, or the mighty Patagotitan, that kind of thing. Perhaps less immediately called ...

A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs.

Scientists have discovered a water-bottle sized dinosaur fossil in Patagonia, Argentina. The tiny predator lived 95 million years ago and ranks among the smallest dinosaurs ever identified.

The newer, more complete specimen allowed the team to finally map the globally-distributed group's strange anatomy ...

For years, we suspected that Alvarezsaurids underwent a rare process of evolutionary miniaturization directly coupled to a ...

A nearly complete skeleton of one of the smallest dinosaurs, Alnashetri cerropoliciensis, was found in Argentina's Patagonia. This crow-sized dinosaur offers insight into the alvarezsaurs group and ...

For ninety million years, a two-pound skeleton lay hidden in the red sandstones of Patagonia.

The series is produced by Steven Spielberg's Amblin Documentaries, with animation from Industrial Light & Magic.

David Grimaldi, a curator for amber at the American Museum of Natural History, said that the rich amber deposits in Myanmar formed in larger chunks than elsewhere and are heavily mined and ...

Add Yahoo as a preferred source to see more of our stories on Google. WASHINGTON, Feb 25 (Reuters) - In Argentina's Patagonia region 95 million years ago, some huge dinosaurs roamed the landscape ...