Argentinosaurus
Argentinosaurus is the heaviest and largest of all Sauropods which ever inhabited planet Earth. It lived in South America territory during the Cretaceous period. An Argentinian farmer discovered the first Argentinosaurus fossils in 1987 near the Neuquén Province. The landowner was confused having messed the huge dinosaur thighbone with a tree branch. Later he recovered a huge dinosaur vertebra about 1.59 metres high similar to the height of 15-16 year old teenager.
