they occupied other branches of the dinosaur family tree. Sinosauropteryx, in fact, was what paleontologists call a non-avian dinosaur, even though it had feathers. This insight has prompted ...

Fossils of alvarezsaurid dinosaurs show bird-like air sacs in their bones. Scans revealed hollow spaces connected to their ...

Scientists on Wednesday proposed a radical overhaul of the dinosaur family tree first laid out in 1888, concluding after an analysis of 75 species that the meat-eating group that includes T.

A new family tree of the meat-eating dinosaurs shows where birds perch among their closest dinosaur relatives. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

Scientists from the Museum and Cambridge University have proposed radical changes to the dinosaur family tree, based on their analysis of hundreds of fossil features. The research provides important ...

split off from the dinosaur family tree. Earlier dinosaurs, common ancestors to both Microraptor and Archaeopteryx, had already formed many of the physiological traits needed for getting airborne ...