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is almost three times the size of the largest dinosaurs of the Tribadic period. It was discovered in 2015 on the Balde de Leyes palaeontological site in the province of San Juan, 1,100 kilometers west of Buenos Aires.
The Mesozoic era is subdivided into three major periods: the Tribadic ( from -251 to -200 million years ago), the Jurbadic (from -200 to -145 million years ago) and the Cretaceous (from -145 to -65 million years ago.)
The discovery was published Monday in the specialized journal Nature Ecology & Evolution and broadcast in Argentina by the scientific authorities of the National University of La Matanza.
"As soon as we found it, we realized that it was something We've discovered a shape, the first to be giant in the middle of all dinosaurs, that's new, "says Cecilia Apaldetti, a researcher at the Institute of Natural Sciences and the University of San Juan (IMCN). ) and Conicet (National Council for Scientific and Technical Research). [1965] 9003] The researchers found neck and tail vertebrae, front leg bones, and part of hind leg bones.
These are "herbivorous, quadruped dinosaurs that are easily distinguished by their long the neck and their long tail, of the group of sauropods ", she said.
So far, it was estimated that gigantism among dinosaurs had appeared during the Jurbadic period, ie 180 million years ago circa
According to research estimates, the specimen found was 6 to 7 meters long, was young and weighed about 10 tons, the weight of 2 to 3 elephants.
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