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

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

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

Speedy megaraptor Joaquinraptor casali had big arms and claws like hedge trimmers that would have made T. rex's forelimbs ...

The new dinosaur was named Joaquinraptor casali, in memory of Lucio M. Ibiricu's son Joaquin. Ibiricu, a researcher at the ...

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

An artist's illustration shows a newly discovered dinosaur, Joaquinraptor casali, with an ancient crocodile relative's front ...

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