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 ...

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

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

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

Table for one-and-a-half. Scientists have discovered a new “apex predator” dinosaur that appears to have been fossilized right in the middle of eating a crocodile-like creature. The newly found ...

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