Argentinosaurus was a large sauropod dinosaur which lived during the Cretaceous period. It may very well be one of the largest dinosaurs which ever existed, surpassing even the Brachiosaurus in size. It lived in what is known today as South America, though much is still unknown about the creature.
A complete skeleton of Argentinosaurus has not yet been found. Only the tibia, ribs, and verterbrae have been found, along with the sacrum. The massive size of these bones and the knowledge of similar sauropod species have allowed paleontologists to calculate the size of the creature. They found that a full grown Argentinosaurus would have been between 100 and 115 feet, and weighed between 90 and 100 tons.
As the name suggests, Argentinosaurus was found in the South American country of Argentina. It is one of the more recent discoveries made in the field of paleontology, with the first fossils found in 1993. The bones were found by Rodolfo Coria and José F. Bonaparte. National Geographic were on hand to interview the two paleontologists shortly after the discovery.
Argentinosaurus was a type of Titanosaur, which are some of the largest land animals to ever walk the Earth. Their heads were small in comparison to other sauropods, and they were also wide. They had large nostrils and their teeth were shaped like spoons and pencils, and were small in size. The tail of Argentinosaurus was short when compared with other sauropods, and their tales could be compared to whips. They also were much more flexible than other sauropods, and their back bones were solid but not hollow.
From the skin impressions which were found with fossils, it appears Argentinosaurus had armor with small scales which surrounded much larger scales. Argentinosaurus was a herbivore, and probably was not selective in the types of plants it ate. It is believed that the Argentinosaurus, like other sauropods, lived in groups, much like elephants today.