A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs. Researchers led by Twin Cities paleontologist Peter Makovicky and Argentine sc ...

Spicomellus is the world's oldest ankylosaur, having roamed the Earth 165 million years ago. The bizarre creature had bony spikes fused onto all of its ribs. This unusual feature has never been seen ...

Big dinosaurs seem to get all the attention. Long-necked dinosaurs like Patagotitan, the largest animal to ever walk the earth, often dominate museum displays, relegating the smallest dinosaur fossils ...

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 ...

Morgan Freeman narrates this visually stunning four-part series — but is it more style than substance?

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 ...