翻訳と辞書 |
Eocursor
''Eocursor'' (meaning "dawn runner") was a primitive genus of dinosaur which lived during the Late Triassic (Norian age), around 210 million years ago. It was an ornithischian which lived in what is now South Africa. Remains of this animal have been found in the Lower Elliot Formation and are the most complete known from a Triassic ornithischian, shedding new light on the origin of this group. Fossils of ''Eocursor'' were originally collected in 1993, but were not formally described until fourteen years later. The type species, ''Eocursor parvus'', was described in 2007 by Richard J. Butler, Roger M. H. Smith, and David B. Norman. ''Eocursor'' was one of the earliest known ornithischians, and sheds some light on early dinosaur relationships because early dinosaurs are known from mostly incomplete skeletons. ''Eocursor'' is known from partial skeletal elements, including skull fragments, spinal elements, pelvis, long leg bones, and unusually large grasping hands. ==Description== ''Eocursor'' was a lightly built bipedal dinosaur with an estimated length of about 1 m (3 ft). The general aspect of the animal resembles that of the early Jurassic ornithischians such as ''Lesothosaurus'' and ''Scutellosaurus''. Its large hands resembled those of the Heterodontosauridae, a clade of primitive ornithischians. The morphology of the triangular teeth, not unlike those of an iguana, suggests partial herbivory. The tibia was significantly longer than the femur, indicating it was a swift runner.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Eocursor」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|