| 燕山地区中元古代常州沟组潜穴化石 |
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| 引用本文： | 刘鹏举.燕山地区中元古代常州沟组潜穴化石[J].地质论评,2003,49(5):522-524. |
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| 作者姓名： | 刘鹏举 |
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| 作者单位： | 吉林大学地球科学学院,长春,130061 |
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| 基金项目： | 中国地质调查局地质调查项目，， |
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| 摘 要： | 在燕山地区中元古代常州沟组中发育有大量的潜穴化石，潜穴产于常州沟组中部的泥质粉砂岩中。潜穴呈个体较大的直管状，垂直层面保存。这是我国迄今为止发现的最古老的遗迹化石，表明在距今近1800Ma前就已出现古老的后生动物，这对于研究后生动物的起源及演化具有重要意义。
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| 关 键 词： | 燕山地区 中元古代 常州沟组 潜穴化石 泥质粉砂岩 后生动物 |
Burrow Fossils in the Changzhougou Formation of the Mesoproterozoic in the Yanshan Area |
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| LIU Pengju College of Earth Sciences,Jilin University,Changchun.Burrow Fossils in the Changzhougou Formation of the Mesoproterozoic in the Yanshan Area[J].Geological Review,2003,49(5):522-524. |
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| Authors: | LIU Pengju College of Earth Sciences Jilin University Changchun |
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| Abstract: | A large amount of burrow fossils are found in pelitic siltstone in the middle Changzhougou Formation of the Mesoproterozoic in the Yanshan area. There are preserved comparatively large and vertically straight tubes. Those fossils are the oldest ichnofossils in China, which indicate that the oldest metazoan had appeared before 1800 Ma. The discovery of those fossils is of great significance in probing into the origin and evolution of the Metazoan. |
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| Keywords: | Yangshan area Mesoproterozoic Changzhougou Formation burrow fossils |
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