Prehistoric Argentina, the promised land of scientists, paleontologists and lovers of the great lizards.
Argentina was in prehistoric times, a very populated by dinosaurs.
At present, the finding of fossils has aroused the attention of paleontologists from around the world, as well as tourists from home and abroad.
Parallel to the changes occurring in living species, there were also large geographic and climatic changes.
There was, in those days, one continent on the planet, known as Pangea. The Andes Mountains had not yet formed, allowing the sea came up to the present province of Neuquén.
100 million years ago, the territory consisted Patagonian forests populated grasslands interspersed with rivers and streams. The Andes did not exist, even if there were active volcanoes. The Pacific Ocean came to this territory. With this soil and geography, the climate was then presented humid tropical or subtropical.
Among Cretaceous vegetation, Araucaria species were observed, and other oddities ginkos primitive. There under the trees ferns, cycads and flowering plants first made their appearance. In that period lived the largest carnivore found so far, the Giganotosaurus Carolini, whose dimensions were about 14 meters in length. In the same medium, lived with smaller carnivores and herbivores, highlighting the Andesaurus Delgadoi. Aquatic turtles, predecessors of the current, and small primitive mammals and flying reptiles example was the pterosaur, and insects such as dragonflies, but larger than those existing today with invertebrates, made up part of the ecosystem prevailing .
Throughout all of Patagonia, numerous frolil, "stone bone", name the Mapuche indigenous people awarded the fossil.
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