At a news conference in the western Patagonian city where the news species was found, paleontologists have unveiled what may be one of the largest carnivorous dinosaurs known -- Mapusaurus roseae.

Meet Mapusaurus roseae, the largest carnivore on Earth recorded to date. Paleontologists working in the Patagonian wilderness in Argentina who found the remains of the 41-foot long and 15,000-pound ...

Move over T. rex, there's a new king of the Cretaceous. A University of Alberta paleontologist was part of a team to unveil what may be one of the largest carnivorous dinosaurs known. The U of A's Dr.

Fossil hunters in Patagonia have unearthed the remains of more than a half-dozen gigantic dinosaurs that appear to have lived and hunted in a pack. Mapusaurus roseae was bigger than Tyrannosaurus rex ...

NEW YORK – Scientists are learning more about what appears to be one of the biggest meat-eating dinosaurs known, a two-legged beast whose bones were found several years ago in the fossil-rich ...

Giant predatory dinosaurs may have hunted in packs to bring down the biggest plant-eating prey. The evidence comes from the first detailed analysis of the remains of giant predatory dinosaurs ...