標題: 3D 素描解析最早恐龍始盜龍 Eoraptor(圖/視頻) [打印本頁]
作者:
oviraptor 時間: 2008-8-20 08:26 AM 標題: 3D 素描解析最早恐龍始盜龍 Eoraptor(圖/視頻)
始盜龍（學名Eoraptor）又名曉掠龍，是世界最早的恐龍之一，生活於三疊紀晚期的阿根廷西北部。牠們是雙足的肉食性恐龍，身體小型，成長後約1米長。牠是快速的短跑手，當捕捉獵物後，會用爪及牙齒撕開獵物。但是，牠同時有着肉食性及草食性的牙齒，葉狀齒類似原蜥腳下目的牙齒，所以牠亦有可能是雜食性的，古生物學家相信始盜龍代表了所有恐龍的祖先。
Eoraptor lunensis is from the late Triassic of Argentina. One of the earliest known dinosaurs and a contemporary of Herrerasaurus, its already bipedal stance and short, specialized forelimbs suggest an affinity with theropod dinosaurs. Eoraptor lends support to the hypothesis that dinosaurs diverged rapidly and at small body sizes from a common ancestor, and that the main herbivorous and carnivorous lineages were already present by the Middle Carnian. Information about its internal cranial anatomy derived from CT scanning should shed additional light on the origin and early evolution of dinosaurs.
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