WASHINGTON (Reuters) -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, thanks not only to its extensive skull remains but also to the remarkable object that it still had clutched in its jaws – the leg of a croc.

The dinosaur, named Joaquinraptor casali, lived roughly 67 million years ago in what is now central Patagonia at the twilight of the age of dinosaurs, measuring approximately 23 feet (7 meters) long and one ton in weight. The scientists found in its jaws the remains of the leg of a large crocodile relative, raising the possibility that the dinosaur died somehow – perhaps by choking – while making a meal of the croc.

Joaquinraptor (pronounced wah-KEEN-rap-tor) w

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