翻訳と辞書 |
Deuterosaurus : ウィキペディア英語版 | Deuterosaurus
''Deuterosaurus'' is a genus of dinocephalian therapsid, one of the nonmammalian synapsids dominating the land during the late Palaeozoic. ==Anatomy== Skulls of ''Deuterosaurus'' are well-known from several finds. They were around 80 cm (2 ft 6 in) with a long snout and conical teeth. Like all anteosaurs, the skull possessed long, dagger-like canine teeth. The skull was rather short for an antosaur, with a broad cheek region, indicating a very strong bite. The eyes where partly slanted forward, giving it at least partial stereo vision. The pineal eye, though small, had a well formed opening right atop the brain case. ''Deuterosaurus'' was a very large animal; the size of a modern grizzly bear. T. H. Huxley mistakenly considered it to be a dinosaur.〔Huxley, T.H. (1869). ("Triassic Dinosauria" ) ''Nature'' 1: 23-24.〕 With its long tail, it had an adult length of 5–6 meters (15–18 ft) and weighted around half a ton. Judging from related therapsids, the short but massive legs where held sprawling, much like a modern crocodile. When walking, the tail would have swung sideways, like in modern reptiles.
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「Deuterosaurus」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.
|
|