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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pelycosaur ： ウィキペディア英語版 Pelycosaur The pelycosaurs (from Greek πέλυξ ''pelyx'' "bowl" or "axe" and σαῦρος ''sauros'' "lizard") are an informal grouping (previously considered an order) composed of basal or primitive Late Paleozoic synapsid amniotes. Some species were quite large and could grow up to or more, although most species were much smaller. Because more advanced groups of synapsids evolved directly from 'pelycosaurs', the term had fallen out of favor among scientists by the 21st century, and is only used informally, if at all, in the modern scientific literature.〔Botha-Brink, J. and Modesto, S.P. (2007). "A mixed-age classed ‘pelycosaur’ aggregation from South Africa: earliest evidence of parental care in amniotes?" ''Proceedings of the Royal Society B'', 274(1627): 2829–2834. 〕 ==Evolutionary history== The pelycosaurs appeared during the Late Carboniferous and reached their acme in the early part of the Permian Period, remaining the dominant land animals for some 40 million years. A few continued into the Capitanian. They were succeeded by the therapsids. 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「Pelycosaur」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.