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

In a new study, researchers said they uncovered part of a skull as well as arm, leg and tail bones from the Lago Colhué Huapi ...

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

Scientists have discovered a new dinosaur from Argentina with powerful claws, feasting on an ancient crocodile bone. The new ...

Scientists in Argentina have discovered Joaquinraptor casali, a new dinosaur species from the mysterious megaraptoran group.

Paleontologists discovered a new species of iguanodontian dinosaur that lived 125 million years ago during the Cretaceous period.

Scientists have discovered a new dinosaur with powerful claws, feasting on an ancient crocodile bone.

Scientists have discovered a new dinosaur from Argentina with powerful claws, feasting on an ancient crocodile bone.

A fossil from about 66 million years ago reveals a species of dinosaur that is new to science, with claws that would have ...

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

Researchers digging in Argentina have uncovered a new type of ancient dinosaur that once roamed the Earth millions of years ...