| 昆明二村早奥陶世遗迹化石 |
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| 引用本文： | 罗惠麟.昆明二村早奥陶世遗迹化石[J].成都理工大学学报(自然科学版),1993(2). |
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| 作者姓名： | 罗惠麟 |
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| 作者单位： | 云南省地质科学研究所 昆明 |
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| 摘 要： | 文章介绍了滇东地区下奥陶统红石岩组的层型剖面及汤池组下部首次发现的遗迹化石:Cruziana furcifera d' Orbigny, C. semiplicata Salter, C. rugosa minor Luo ichnosubsp. nov., Palaeophycus hongshiyanensis Luo ichnosp. nov.等。这些遗迹化石产于具波痕和斜层理的砂岩下层面上,为浅海潮下低能带的Cruziana遗迹相。
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| 关 键 词： | 昆明二村 红石岩组 汤池组 遗迹化石 遗迹相 |
EARLY ORDOVICIAN TRACE FOSSILS FROM ERCUN,KUNMING,YUNNAN |
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| Luo Huilin.EARLY ORDOVICIAN TRACE FOSSILS FROM ERCUN,KUNMING,YUNNAN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1993(2). |
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| Authors: | Luo Huilin |
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| Abstract: | The Hongshiyan section near Ercun in Kunming City, Yunnan Province, serves as a stratotype section for the Lower Ordovician Hongshiyan formation of Eastern Yunnan. This paper describes the trace fossils collected from the lower part of the Tangchi formation and the top of the Hongshiyan formation. This is the first occurrence of the trace fossils from the Early Ordovician Tremadocian Stage in China, such as Craziana furcifera d'Orbigny, C. semiplicata Salter. C. rugosa minor Luo ichnosubsp. nov. , Palaeophycus hongshiyanensis Luo ichnosp. nov. etc. . These trace fossils yield at the surface of a sandstone with current ripple mark and cross bedding. The sediments belonged to the shallow marine ami subtidal low-energy and Cruziana ichnofacies. |
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| Keywords: | Ercun in Kunming Hongshiyan formation Tangchi formation trace fossils ichnofacies |
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