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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 Machichnus ： ウィキペディア英語版 Machichnus ''Machichnus'' is an ichnogenus. It was erected by Mikuláš et al. (2006) for shallow, thin, discrete, parallel to subparallel, smooth-bottomed scratches, occurring on bone tissue in small groups or series. According to modern analogues, the series of scratches represent marks of teeth of carnivorous or scavenging reptilians and mammals. Such traces are quite frequent in the fossil record since the mid-Mesozoic, but they have seldom been described in detail. The type species/specimen of Machichnus comes from the Miocene of the Czech Republic. In this case, crocodiles are suspect as tracemakers. 〔Mikuláš R., Kadlecová E., Fejfar O., Dvořák Z. (2007): Three New Ichnogenera of Biting and Gnawing Traces on Reptilian and Mammalian Bones: A Case Study from the Miocene of the Czech Republic. Ichnos, 13, p. 113–127.〕 ==See also== * Ichnology 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「Machichnus」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.