Argentine paleontologists have announced the discovery of an apex-predator dinosaur that measured three stories from nose to tail and eviscerated its prey with sharp, curved claws.
refers to the enormous expanse of the creature's chest cavity – some 1.2 meters wide.The newly-identified monster measured 9 to 10 meters in length, larger than any previously discovered type of– a group of flesh-eating giants that once roamed what is now South America, according to Aranciaga's team.
It lived about 70 million years ago towards the end of the Cretaceous period in what was then a tropical forest, long before the Andes mountain range and glaciers that now define Patagonia.The killer reptile had two sharp, curved claws per front paw, each talon some 40 centimeters long.on his first-ever professional expedition three years ago to Argentina's Santa Cruz province.
"When I lifted the vertebra and saw that it had the characteristics of a megaraptor, it was really a huge thrill," recalled Aranciaga. "Somehow I fulfilled my childhood dream... finding a new fossil and it turning out to be a megaraptor: the group in which I specialize," he told AFP.was one of the last megaraptors to inhabit Earth before the dinosaurs went extinct about 66 million years ago, according to Fernando Novas of the Argentine Museum of Natural Sciences' Laboratory of Comparative Anatomy.
It is also the southernmost megaraptor ever found, added Aranciaga, a doctoral fellow at Argentina's National Scientific and Technical Research Council .
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