Last Updated：2025/11/20
The paleontologist carefully documented the trace fossil discovered in the sandstone, noting the burrow patterns and ripple marks.
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The paleontologist carefully documented the trace fossil discovered in the sandstone, noting the burrow patterns and ripple marks.
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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。
