这些岩层富含化石，其中有快速进化的海洋生物，比如鹦鹉螺化石，岩层与火山灰岩交错排列。
These rocks consist of fossil-rich layers containing rapidly evolving Marine organisms such as ammonites, interleaved with layers of volcanic ash.
这些岩层富含化石，其中有快速进化的海洋生物，比如鹦鹉螺化石，岩层与火山灰岩交错排列。
These rocks consist of fossil-rich layers containing rapidly evolving Marine organisms such as ammonites, interleaved with layers of volcanic ash.
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