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Paleontologists have uncovered the remains of megaraptor that lived 70 million years ago, making it one of the last carnivorous dinosaur to roam the Earth. Discovered in Argentina, the team found vertebrae, ribs and part of what would have been the dinosaur's chest and shoulder girdle. After a further analysis, they determined the creature was approximately 33 feet in length -the largest megaraptor found to date. Unlike the Tyrannosaurus rex, this lethal dinosaur had extremely long, muscular arms with massive claws at the end that were used to attack prey.

A dinosaur bone discovered in Australia has defied prevailing wisdom about how the world's continents separated from a super-continent millions of years ago, a new study said. The 19-centimetre bone was found in southeastern Australia but it comes from a very close cousin to Megaraptor, a flesh-ripping monster that lorded over swathes of South American some 90 million years ago. The extraordinary similarity between the two giant theropods adds weight to a dissident view about the break-up of a super-continent, known as Gondwana, that formed the continents of the southern hemisphere, the authors said on Tuesday. Gondwana broke up during...