New dinosaur species unveiled in Rio de Janeiro (AFP)
16.10.2007 08:20 Science - Source: Yahoo Science
"It is one of the three largest dinosaur fossils ever discovered in the world and the most complete because we found 70 percent of its skeleton," Argentina's Comahue National University Paleontology Center director Jorge Calvo told reporters.
Belonging to the Titanosaur family, the newly discovered member of the Lognkosauria genus measured 32-34 meters (99-105 feet) and lived exclusively in Patagonia.
It has been named Futalognkosaurus dukei, with the first name from the Mapuche language meaning "giant chief of dinosaurs," and the second in honor of the Duke Energy Argentina company that largely financed the digs at lake Barreales, 90 kilometers (56 miles) north of Neuquen, Argentina.
The new dinosaur was found at the start of the excavation, in February 2000, alongside other animal and plant fossils in a 400 square meter area (4,300 square feet).
The fossils allowed experts to "reconstruct an ecosystem of the upper Cretaceous period (from 97 to 66 million years ago) with unprecedented exactitude," said Calvo.
"The fact that most of the fossils were found in a limited area under a 0.5-meter (1.5-foot) rock layer makes us deduct that all those animals lived in the same epoch," he added.
The paleontologists also found fossils of fish, shellfish, at least two types of crocodile-like creatures and several dinosaurs, including the flying Pterosaur and carnivores like Megaraptor, with its 40-centimeter (16-inch) claws.
They also found plant fossils of leaves showing the predominance of angiosperms (flowering plants) at the time.
|
|
www.blackholenews.net
