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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 Rhyniella praecursor ： ウィキペディア英語版 Rhyniella praecursor ''Rhyniella praecursor'' (meaning "small creature of the Rhynie chert, a forerunner (modern hexapoda )") is a fossil springtail (Collembola) from the Rhynie chert formed during the Pragian stage of the Early Devonian; for some time it was believed to be the only hexapod from the Early Devonian ( ). Its remains were discovered in 1919. Reconstructed from the scattered bits and pieces of its exoskeleton, ''R. praecursor'' was described in 1926, and at first believed to be a larval insect. Mouthparts initially assigned to ''R. praecursor'' were redescribed as ''Rhyniognatha hirsti'' in 1928. In 2004, ''Rhyniognatha hirsti'' was found to be an insect, the oldest known to date. ''Rhyniella'' grew to a length of about 1-2 mm and would have been a scavenger, feeding on rotting matter. ==References== * * Parker, Steve. ''Dinosaurus: the complete guide to dinosaurs''. Firefly Books Inc, 2003. Pg. 74 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「Rhyniella praecursor」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.