Argentine palaeontologists have discovered the remains of new herbivorous species of dinosaur that inhabited the country's southern El Calafate 70 million years ago.
The Nullotitan Glaciaris measured 25 meters (82 feet) in length, was four-legged and had a long neck.
While the Isasicursor santacrucensis measured four meters in length (13 feet) and could move rapidly on its hinds legs.
Speaking about the discovery palaeontologist Fernando Novas said: "These (discoveries) are from a new archaeological site that is full of plant fossils, dinosaur fossils and other vertebrae. It reveals to us an ecosystem from around 70 millions of years ago, before dinosaurs became extinct.
"The Nullotitan was one of the last great dinosaurs, the last giants that lived on the earth. It would measure 25 meters (82 feet) in length, it was herbivorous, long-necked, with four legs.
"It was a common animal because we found a great quantity of its bones during the dig."
