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Scientists: New Dinosaur Species Found in S Africa By Celean Jacobson November 12, 2009 7:09AM The Aardonyx celestae walked on its hind legs but could drop to all fours and stood nearly 6 feet high at the hip, the scientists said. It was about 10 years old when it died and weighed about 1,100 pounds. Its death may have been caused by drought. The Aardonyx celestae has many characteristics of the plant-eating herbivores.   Related Topics Scientists Dinosaur Evolution Fossils South Africa Latest News Autism Risk for Kids of Older Mothers Go Online and You Can Save the Planet In Haiti, Relief Gaps Are Spreading U.S. To Form Climate-Change Agency U.S. Losing in Clean-Tech Innovation A newly discovered dinosaur species that roamed the Earth about 200 million years ago may help explain how the creatures evolved into the largest animals on land, scientists in South Africa said Wednesday. The Aardonyx celestae was a small-headed herbivore with huge barrel of a chest, and the scientists said it could prove to be a missing evolutionary link. "This is definitely without a shadow of a doubt a brand new type of dinosaur -- one that no one has seen before and one that has a very significant position in the family tree of dinosaurs," said Australian paleontologist Adam Yates. Yates, who is based at the University of the Witwatersrand's Bernard Price Institute for Paleontological Research, led the research with a number of other local and international scientists. Their findings were published Wednesday in the Proceedings of The Royal Society B, a London-based peer-reviewed journal. The Aardonyx celestae walked on its hind legs but could drop to all fours and stood nearly 6 feet (about 1.7 meters) high at the hip, the scientists said. It was about 10 years old when it died and weighed about 1,100 pounds (500 kilograms). Its death may have been caused by drought. Yates says the Aardonyx celestae has many characteristics of the plant-eating herbivores that walked on two legs as well as their descendants. Those sauropods, known more popularly as brontosaurs, grew to massive sizes and went about on all fours. The newly discovered species shows an intermediary stage in the evolution of these creatures, Yates said. "Aardonyx gives us a glimpse into what the first steps toward becoming a sauropod involved," he said. The discovery of the new species was made by postgraduate student Marc Blackbeard, who was excavating two sites about five years ago. Yates believes that the scientists may have stumbled onto a "paleontological oasis" in central South Africa that may yield further previously unknown dinosaur species. Already they are working on the bones of two other specimens found at the site and have also unearthed some giant teeth believed to belong to a mysterious carnivorous dinosaur.   © 2010 Associated Press/AP Online under contract with YellowBrix. All rights reserved.   Tell Us What You Think Your Comment: Also Visit: iPad Info Center Billions of Bytes Mobile Device Now Apple Info Center TopTechWire.com Advertisement  Discovery 1.   Ancient Dinosaur Had Colorful Stripes 2.   Neanderthal Teeth Found in Poland 3.   Is Leonardo Really Mona Lisa? 4.   Dino Tail Feathers Carrot Colored 5.   Texting Illegal for Commercial Drivers Is Leonardo Really Mona Lisa? Scientists hope exhumation will tell. Average Rating: Dino Tail Feathers Carrot Colored First confirmation of color in a dino. Average Rating: Girls May Be Learning Math Anxiety Study: Female teachers may be source. Average Rating:

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