A newly discovered dinosaur in Argentina is giving scientists fresh clues about how some of the biggest creatures on Earth evolved millions of years ago. The massive long-necked dinosaur lived around 155 million years ago and carried a surprising mix of features never seen together before. Researchers now believe the fossil could reshape what scientists understand about giant sauropods in the Southern Hemisphere during the Jurassic period. The discovery comes from Patagonia, a region already famous for producing remarkable dinosaur finds.
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