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.

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

Add Yahoo as a preferred source to see more of our stories on Google. A new species of dome-headed dinosaur has been discovered in fossils found in Montana, according to researchers. The dinosaur, ...

Contrary to previous suspicions, Europe probably had many species of ceratopsian dinosaurs, a clade of large herbivores whose most famous member is Triceratops. Ceratopsian fossils are common across ...

For more than two centuries, scientists have argued over where dinosaurs came from and how a scattered set of bones turned into a global dynasty. After decades of fieldwork and lab work, a clearer ...