联合早报: 河北沙河市发现5亿年前三叶虫化石

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河北沙河市发现5亿年前三叶虫化石 Aug 31st 2013, 02:55 （联合早报网讯）新华网报道，记者从河北省邢台市文物管理处获悉，邢台沙河市王硇村西南举官山山体北侧断崖处近期发现了寒武纪三叶虫化石。专家认为这一发现为重建邢台地区古环境、古地理和古气候提供了重要依据。 据了解，包含三叶虫化石的地层以泥质灰岩、泥质条带灰岩为主，属距今约5.41亿年-4.85亿年的寒武纪时期，化石中可辨别的三叶虫种类有蝴蝶虫、德氏虫和海百合，这种由含量非常丰富的生物形成的岩石又称为"生物碎屑岩"。 （联合早报网编辑：沈茂华 )

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