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Kouphichnium : ウィキペディア英語版 | Kouphichnium
''Kouphichnium'' is an ichnogenus that has been attributed to limulids (horseshoe crabs). Kouphichnium fossils resemble the footprints of birds, sometimes in conjunction with a medial line,〔(【引用サイトリンク】title=Kouphichnium isp. )〕 and were initially thought to be bird or pterosaur tracks. The footprints are now believed to be the imprints of specialized limulid appendages, called pushers, terminating in four plates, used to push against the sediment. The medial line is left by the animal's telson. == See also ==
* Ichnology * Trace fossil
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「Kouphichnium」の詳細全文を読む
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