Aeolosaurus rionegrinus
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rionegrinus
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(ee-OH-luh-SAWR-us)
"Wind Lizard"
Describer Powell, 1987
Also Known As --
Type of Species rionegrinus
Order Saurischia
SubOrder Sauropoda
InfraOrder --
Micro-Order --
Family Titanosauridae
Size 50 feet (15 meters) long, 10 feet (3 meters) tall
at the hip
Period Late Cretaceous, 75-70 million years ago
Fossilsite Argentina
Diet Herbivore
Aeolosaurus rionegrinus was a sauropod common to the southern hemisphere during the Late Cretaceous Period, about 75-70 million years ago. It is similar to Titanosaurus, but has unusual tail vertebrae with long, forward-pointing barbs. Aeolosaurus r. is one of the last of the large quadrupeds herbivores. It had a long, flexible neck. It is believed by some scientists that this dinosaur had dermal plates, or armor, on at least some portions of its body. This fossil discovery was an incomplete specimen.
