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''Pteraichnus'' is an ichnogenus that has been attributed to pterosaurs. It has been found in, among other units, the Lower Jurassic Aztec Sandstone. ==See also== * Ichnology * Pterosaur ichnogenera 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「Pteraichnus」の詳細全文を読む スポンサード リンク
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