Length - 115 feet (35+ m) long
|WHEN IT LIVED||
Middle Cretaceous period, about 100-93 million years ago
|WHERE IT LIVED||
Fossils have been found in the Rio Limay Formation, Neuquen Group, Neuquen Province, Argentina, South America.
Only a few bones have been found, including some enormous back vertebrae (backbones), sacrum (the part of the backbone that is attached to the pelvis), a tibia (a lower leg bone), and some broken ribs. Fossils were first found in 1988.
Argentinosaurus may be the largest dinosaur. It had a long neck, a long tail, and a small head. Very little is known about this giant dinosaur.