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DISCOVERY: Scientists have found the remains of the dinosaur, called Ingentia Prima
Scientists have found the remains of the dinosaur, called Ingentia Prima, meaning "grand cousin", in Argentina.
The dramatic discovery dates back to the emergence of giant dinosaurs by an impressive 30 million years – shedding new light on their evolution.
The colossal Ingenta Prima measured approximately 33 feet long, 14 feet tall and weighed up to 10 tons
He traveled South America there are about 210 million of them. years during the late Tribadic.
The dinosaur was among the first gigantic sauropods to become the largest animals on the planet. Apaldetti said: "It was huge, it was at least twice as large as other herbivores of the time."
The creature changes our understanding of how this group of species has become an immense size.
as fed by the lungs of the bird that would have made it remarkably light on his feet – for his size.
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COLOSSAL: The Ingenta Prima measured approximately 33 feet long, 14 feet high and weighed up to 10 tons
Dr. Apaldetti said: " Until now, it was believed that the first giants of the Earth were from the Jurbadic – about 180 million years ago. " But with this discovery, we can see the first steps towards gigantism occurred 30 million years before the giants virtually dominated the entire planet. "
This period was a milestone in the history of dinosaurs, but the fossil record is so incomplete that it obscures the details of this crucial evolutionary change." There appeared about 230 million of years, and it was believed that it had taken them about 50 million years to become mbadive.
But the new discovery shows that this happened in less than half from this period
The nature Ecology & Evolution, is an ancestor of its famous cousins Titanosaurus Brachiosaurus and Diplodocus, known for their colossal tails and huge tails.
Among the most iconic dinosaurs, they are extended to 130 feet and weighed up to 80 tons.
The first examples of this group were small creatures with two legs. To transform themselves into imposing giants, it was thought that the development of legs right for the support and continued and rapid growth were essential.
"It was huge, it was at least twice as big as the other herbivores of the time"
Dr. Cecilia Apaldetti
But Ingentia Prima, who was found next to the remains of three individuals belonging to the species already known Lessemsaurus Sauropoides, changes that.
They all belonged to a family of dinosaurs called 'lessemsaurids'. and He lived in what is now Argentina, but was then the southeast corner of Pangea.
Dr. Apaldetti said the climate would have been hot, with periodic monsoons producing an African savannah landscape with many shrubs on which Ingentia Prima.
Dr. Apaldetti said, "Gigantism is an evolutionary survival strategy, especially for herbivorous animals."
Its size would also have reduced its risk of being eaten by flesh-eating dinosaurs. 19659005] Remarkably preserved specimens were discovered in a "nest" of dinosaurs unearthed at a world heritage site known for its fossils in the province of San Juan, northwest of Argentina
. shoulders, cervical vertebrae and bones of the forelegs, paws and skull of the four dinosaurs.
Dr. Apaldetti, of the National University of San Juan, said that they weighed between seven and ten tons. Like their notorious descendants, they also had elongated necks and tails.
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And they had the same bird breathing bags – respiratory structures supposed to have been needed to keep large animals cool.
Explanation Dr. Apaldetti: "This respiratory system is related to the development of air sacs inside their bodies – like modern birds.
allowed them to have large reserves of water. oxygenated air, and also helped keep them cool despite their size.
"In addition, this type of breathing involved the presence of cavities, or deep holes, in their bones – known as But unlike their More recent counterparts, they stood on their bent legs and had bones that thickened by accelerated accelerations – showing that there was more than one way of doing it. ; pneumatic skeleton & # 39 ;. Dr. Apaldetti said: "The Sauropods were the first successful group of herbivorous dinosaurs, dominating most terrestrial ecosystems."
Their expansion into the late Tribadic is evident with the appearance of many small Agile two-legged types recorded worldwide.
Dr. Apaldetti added: "sauropods evolved from these smaller forms and became the largest terrestrial animals ever to live on Earth." [19659038]
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