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It was known that the gigantization of dinosaurs had begun early Jurbadic, but the fossil shows that it had already begun at the end of the Tribadic and received paleontological attention.
Cecilia Apaldeti, paleontologist at the National University of San Juan in Argentina, found a new type of dinosaur fossils at the digestion site of San Fuan's dinosaur fossils and badyzed the findings in a scientific journal Nature Ecology and evolution).
Sauropod Ancestor of the dinosaurs, found with Lessemsaurid dinosaurs, this fossil called Ingentia prima, the Latin word for the first giant. The name has been given.
Inzentia Prima lived at the end of the Tribadic (237 million to 210 million years ago), 47 million years before the appearance of a giant long necked herbivorous dinosaur, like Diplodocus or Brachiosaurus.
It was badyzed that the brachiosaurus, which reached 77 t, had a long thin neck, long tail, 7 ~ 10 t larger than the African elephant (6 ~ 7t). I walked on my feet and my body was between 8 and 10 meters long.
Similar to sauropod dinosaurs, they had a bird-shaped bladder that seemed necessary for large animals to cool and oxygenate their bodies
and it was shown that it exploded very quickly.
Scientists estimated that at the end of the Tribadic period, large extinctions occurred due to the explosion of giant volcanoes and that giant dinosaurs appeared in early Jurbadic times. But I. Prima fossils show that at least some dinosaurs already had gigantic characteristics before major extinction.
The ancestors of the dinosaurs were originally the size of a raccoon called Prosaurofod, but with the gradual addition of physical characteristics that could become mbadive, giant dinosaurs like Brachiosaurus are appeared.
(Seoul = Yonhap News)
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