Last Updated：2025/11/21
Sentence
古生物学者は砂岩で発見された痕跡化石を慎重に記録し、巣穴の模様や波紋の跡を詳しく観察した。
Quizzes for review
The paleontologist carefully documented the trace fossil discovered in the sandstone, noting the burrow patterns and ripple marks.
See correct answer
The paleontologist carefully documented the trace fossil discovered in the sandstone, noting the burrow patterns and ripple marks.
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Related words
trace fossil
Noun
Japanese Meaning
生物が堆積物や硬い地層を改変することによって形成される化石。実体の残骸ではなく、巣穴、通路、足跡、糞石、または掘られた穴などの痕跡が保存されたものを指します。
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