Meet Joaquinraptor casali, a newly discovered megaraptorid that dominated parts of South America during the late Cretaceous.

Found in the Lago Colhué Huapi Formation in Patagonia, Argentina, J. casali may have been the apex predator of its Cretaceous ...

The dinosaur’s bones are currently being held at the National University of Patagonia San Juan Bosco. There are no current ...

A fossil unearthed in Argentina of a newly identified species of meat-eating dinosaur is providing insight into a poorly understood group of Cretaceous Period predators.

The finding in Argentina reveals a new megaraptor species that would have ruled at the same time as North America’s T. rex, ...

A fossil from the blustery plains of Patagonia is revising your book on one of the most elusive bands of hunting dinosaurs.

Paleontologists in Argentina have discovered a new predatory dinosaur -- the fossils of which contained a crocodile bone within the dinosaur's mouth.

Scientists announced Tuesday the discovery of a new dinosaur in Patagonia, Argentina, with a crocodile bone in its jaw.

Published findings reveal that researchers in Argentina have uncovered a species of Megaraptoran with a surprise in its jaw.

The new dinosaur, named Joaquinraptor casali, was about 23 feet (7 meters) long and weighed over 2,200 pounds.

Scientists have discovered a new dinosaur from Argentina that may have used its long arms and claws to capture prey.

Científicos han descubierto un nuevo dinosaurio en Argentina con poderosas garras, que se alimentaba de huesos de cocodrilos ...