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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 Rhyniognatha ： ウィキペディア英語版 Rhyniognatha ''Rhyniognatha hirsti'' is the world’s oldest known insect. It emerged very early during the Early Devonian Period, around 400 million years ago, when earth’s first terrestrial ecosystems were being formed. ==Evidence== The head part of a specimen, preserved in a fragment of Rhynie Chert, was collected in 1919 by the Reverend W. Cran, who provided it to S. Hirst, S. Maulik and D.J. Scourfield. Hirst and Maulik published a report in 1926; in it they described ''Rhyniella praecursor'', which is now known to be a springtail. Several other pieces, including the ''Rhyniognatha'' head, were also described as ''R. praecursor'', stating the specimen to be a “supposed larval insect”. The specimen was correctly identified as a different species and renamed ''Rhyniognatha hirsti'' in 1928 by entomologist Robin J. Tillyard. It was later donated by D.J. Scourfield to the Natural History Museum in London where it is currently displayed on a microscope slide. Scientists have not found much information, but due to the shape of the jaws they think it was probably winged. Ref Image: (The University of Aberdeen ) 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「Rhyniognatha」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.