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 ...

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

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

At around 30 cm (11 in) in length, a species called Epidexipteryx likely takes the cake as the smallest dinosaur in this group. It lived during the Jurassic period in modern-day China and is known for ...

A fascinating discovery has revealed the tiniest dinosaur ever identified. Epidexipteryx, roamed the Earth during the Jurassic period in what is now modern-day China. This tiny dinosaur was equipped ...

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.

Among the strangest branches of the dinosaur family tree are the alvarezsauroids, small, bird‑like theropods that lived from the Jurassic into the Cretaceous. They don’t fit the image of sharp‑toothed ...

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

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 ...

Scientists have discovered a remarkably complete fossil of a tiny dinosaur that is helping to solve a long-standing puzzle about a strange group of prehistoric animals. The fossil, about 90 million ...

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 ...