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Burrow fossil : ウィキペディア英語版 | Burrow fossil Burrow fossils are the remains of holes or tunnels excavated into the ground or seafloor by animals to create a space suitable for habitation, temporary refuge, or as a byproduct of locomotion preserved in the rock record. Because burrow fossils represent the preserved byproducts of behavior rather than physical remains, they are considered a kind of trace fossil. ==Vertebrate burrows==
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「Burrow fossil」の詳細全文を読む
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