Argentine scientists find new dinosaur species
These are the fossilized remains of one of the last giants to roam the earth.
The Nullotitan Glaciaris is a newly-discovered species of dinosaur, according to scientists in Argentina.
They discovered the fossils in the southern Patagonia area of the country known for its barren deserts and ice fields.
(SOUNDBITE) (Spanish) PALEONTOLOGIST, FERNANDO NOVAS, SAYING:
"These discoveries are from a new archaeological site that is full of plant fossils, dinosaur fossils and other vertebrae. It has revealed an ecosystem from around 70 millions of years ago, before dinosaurs became extinct."
But before they all died off the scientists say the Nullotitan was very common in the region judging from the number of fossils they found at the site.
They also learned their new discovery was massive.
(SOUNDBITE) (Spanish) PALEONTOLOGIST, FERNANDO NOVAS, SAYING:
"It was 25 meters long. It was an herbivore, with a long neck and four legs."
Scientists also discovered a smaller herbivore species: the Isasicursor santacrucensis.
(SOUNDBITE) (Spanish) PALEONTOLOGIST, FERNANDO NOVAS, SAYING:
"The interesting thing about this discovery was that we found many bones, adults and youth, all mixed together. This is one of the few discoveries that reveal to us that these dinosaurs species lived in groups, in packs."
That behavior, they said, helped protect them against other species which preferred meat over vegetation.
