To sort the earliest branches of the dinosaur family tree, paleontologists compare skeletons piece by piece. They build ...

Researchers are uncovering the evolutionary steps that set the stage for dinosaurs to rule the planet Amy McDermott, PNAS Front Matter Paleontologists have found early examples of theropods, the group ...

Scientists recently announced newly described dome-headed dinosaur species, the most complete skeleton of its kind ever found ...

The dome-headed dinosaur is easily one of the most standout-looking creatures of the Cretaceous period. The image of their hardy dome-heads has slowly seeped into the public imagination via movies ...

A tiny plant-eating dinosaur that was about the same size of a chicken and occupied what’s now northern Spain some 125 million years ago is baffling scientists. The dinosaur, Foskeia pelendonum—named ...

A fossil discovered in northeastern China has revealed unusual skin structures in an ornithischian dinosaur that lived about 125 million years ago. The skin impressions on the specimen are remarkably ...

This piece first appeared in the Front Matter section of the Proceedings of the National Academy of Sciences. A small but fierce jawbone sits in Argentina’s natural science museum in Buenos Aires. Six ...

Ecosystem reconstruction of the Late Jurassic Dry Mesa Dinosaur Quarry around 150 million years ago in Colorado, the United States. The landscape is dominated by gymnosperm plants such as conifers and ...

Dinosaurs often get framed as giants locked in endless battles. Huge teeth, huge tails and huge drama. But the real story of survival in the Late Jurassic was quieter and far more lopsided. It ...

Baby long-necked dinosaurs might have been the fast food of the Jurassic Period. A detailed food web of the time, reconstructed from fossil data, shows that the young not-yet-giants almost ...