以保存完整精美、数量巨大的海生爬行类和棘皮动物海百合为标志。
Marine reptiles and echinoderm crinoid that feature intact and delicate preservation and large quantity serve as the mark.
以保存完整精美、数量巨大的海生爬行类和棘皮动物海百合为标志。
Marine reptiles and echinoderm crinoid that feature intact and delicate preservation and large quantity serve as the mark.
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