恐龙的起源-精品.ppt

恐龙的起源-精品
Dinosaur is about ten million years ago, earth reptiles. There are many kinds of them, the body size, shape,Tyrannosaurus rex, the body length of about 13 meters, weighs about seven tonnes, survival in the late Cretaceous of Maastricht order last 300 years, dating back about 6850 years to 6550 years, is the Cretaceous - Tertiary extinction event, one of its last dinosaur species. Fossils found in North America, the United States and Western Canada, the distribution of a wider range of subjects than the other Raptors.
霸王龙又名暴龙，模式种与目前唯一的有效种是雷克斯暴龙（Tyrannosaurus rex），或称雷克斯龙，是一种大型的肉食霸王龙性恐龙，身长约13米，体重约7公吨，生存于白垩纪末期的马斯垂克阶最后300万年，距今约6850万年到6550万年，是白垩纪-第三纪灭绝事件前最后的恐龙种群之一。化石分布于北美洲的美国与加拿大西部，分布范围较其他暴龙科更广。
Stegosaurus was a huge dinosaur that lived in the late Jurassic four-legged herbivores. They are considered to be living in the plains, and to groups of nomadic ways and other herbivores, such as the dragon beams with life. It's back has a row of large bony plates, and the danger with four tail spikes defense against predators. Approximately up to 12 meters long and 7 meters high, can weigh 4 tons.
剑龙为一种巨大的恐龙，生存于侏罗纪晚期四只脚的食草动物。它们被认为是居住在平原上，并且以群体游牧的方式和其它如粱龙的食草动物一同生活。它的背上有一排巨大的骨质板，以及带有四根尖刺的危险尾巴来防御掠食者的攻击。大约可达 12公尺长和 7 公尺高，可重达4 吨。
雷龙(Brontosaurus), formal name Apatosaurus (known Apatosaurus), is under the feet LiangLongKe caste eyes a generic, life in Jurassic rev. Murray order to mention the order, about 1 billion between 50 million years ago. They are the biggest animals on land, one of the existing body length about 26 meters, the weight between 24 to 32 tons. Their generic name in Greece for "bogus of semantic lizard", it is because it is very much like the herringbone bone jc dragon.LeiLong may weight tons, and approximately 26 meters length, its neck 8 meters long, in fact, than body forehand return long. Its tail for about nine meters, it stood to the hips, about meters high. But the lower half its body than shoulder high, but when it l