Mongolian-Japanese group publicized Wednesday that they had discovered a nearly complete skeleton of a Tarbosaurus dinosaur. The Tarbosaurus is closely associated to the better-known Tyrannosaurus that found in the Gobi Desert. Experts think this is the first discovery of so good preserved a skeleton of a young dinosaur of this species. The skeleton is supposed to date back 70 million years. It was discovered by members of the Center of Paleontology in the Mongolian Academy of Sciences working with associates from Hayashibara Co., a biotechnology firm based in Okayama, Japan. An adult Tarbosaurus would in general grow to a length of 12 meters. The skeleton found in the Gobi measures 2 meters long and is assumed to have been five years old when it died.