Dinosaur fossils discovered by paleontologists working with the University of Wisconsin-Madison have been determined to be ...

A chicken-sized dinosaur fossil is challenging the mainstream view of how and when reptiles spread to the Northern Hemisphere, new research revealed. Until recently, many scientists believed there ...

In the new study, published Feb. 19 in the Journal of Vertebrate Paleontology, researchers also identified fossils from another group of large, predatory dinosaurs called Carcharodontosauria ...