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ExtinCtion oF DinosAurs


The extinction of dinosaurs The mystery of dinosaur extinction More than 200,000,000 years ago in the Mesozoic, a large number of reptiles living on land, it is also known as the Mesozoic "era of reptiles," the earth was the first to occupy a wide

With regard to the reasons for the extinction of dinosaurs, it is still being studied. For a long time, the most authoritative view, and the extinction of the dinosaurs 6500 years ago about a large meteorite. According to the study, there was a 7-10 km in

Dinosaurs are a diverse group of animals of the clade Dinosauria that first appeared during the Triassic period. Although the exact origin and timing of the evolution of dinosaurs is the subject of active research, the current scientific consensus

请参考:http://www.ucmp.berkeley.edu/diapsids/extinction.html http://web.ukonline.co.uk/a.buckley/dino.htm http://www.zoomdinosaurs.com/subjects/dinosaurs/ (进去后,点击左边的 Extinction 链接) http://www.search.eb.com/dinosaurs/dinosaurs/study/act03.htm http://astro.ysc.go.jp/ysc/story/pla0404-e.html

Dinosaurs ExtinctionNon-avian dinosaurs suddenly became extinct approximately 65 million years ago. Many other groups of animals also became extinct at this time, including ammonites (nautilus-like mollusks), mosasaurs, plesiosaurs, pterosaurs

the dinosuar the dinosaurs is one of the kind of animal lives successfully.the dinosaurs was the kind of animal rule the global longest time. the less of them was eating.by the end of,dinosaurs had been disappear to the global in the noany ways,

Lots of ideas have occurred to the scientists to explain the end of dinosaurs. 哦,刚才的不对,应该是Caught up with, extinction.

dinosaursn. 恐龙(dinosaur的复数形式);恐龙类awkwardadj. 尴尬的;笨拙的;棘手的;不合适的

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