| 内蒙古乌达地区早二叠世早期植物群 |
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| 引用本文： | 孙克勤,张周良.内蒙古乌达地区早二叠世早期植物群[J].现代地质,1998,12(4):586-590. |
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| 作者姓名： | 孙克勤 张周良 |
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| 作者单位： | [1]北京大学地矿系 [2]北京石油大学地球科学系 |
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| 摘 要： | 通过对内蒙古乌达地区早二叠世早期山西组植物化石进行研究，共鉴定出植物化石７属１１种，即Ｔｉｎｇｉａｃａｒｂｏｎｉｃａ（Ｓｃｈｅｎｋ）Ｈａｌｅ，ＴｐａｒｔｉｔａＨａｌｅ，ＰｌａｇｉｏｚａｍｉｔｅｓｃｆｏｂｌｏｎｇｉｆｏｌｉｕｓＨａｌｅ，ＳｐｈｅｎｏｐｔｅｒｉｓｎｏｒｉｎｉＨａｌｅ，ＳｎｙｓｔｒｏｅｍｉＳｚｅ，ＳｔｅｎｕｉｓＳｃｈｅｎｋ，ＰｅｃｏｐｔｅｒｉｓａｎｄｅｒｓｏｎｉＨａｌｅ，ＰｌａｔｉｖｅｎｏｓａＨａｌｅ，Ｔａｅｎｉｏｐｔｅｒｉｓｓｐ，Ｃａｕｌｏｐｔｅｒｉｓｓｐ，ＰｔｅｒｏｐｈｙｌｕｍｄａｉｈｏｅｎｓｅＫａｗａｓａｋｉ。研究结果表明，这些植物化石均为华夏型分子，可以和华夏植物区的一些同期植物群进行对比。根据植物群的总体组成，该区山西组植物群的地质时代属于早二叠世早期，大致相当于阿谢尔期（Ａｓｅｌｉａｎ）至萨克马尔期（Ｓａｋｍａｒｉａｎ）。
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| 关 键 词： | 内蒙古 乌达地区 早二叠世早期 植物群 |
EARLY EARLY PERMIAN FLORA IN WUDA AREA OF INNER MONGOLIA |
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| Abstract: | The fossil plants described and illustrated were collected from the Shanxi Formation of early Early Permian in Wuda area of Inner Mongolia, namely, Tingia carbonica (Schenk) Halle, T. partita Halle, Plagiozamites cf. oblongifolius Halle, Sphenopteris norinii Halle, S. nystroemii Sze, S. tenuis Schenk, Pecopteris anderssonii Halle, P.lativenosa Halle, Taeniopteris sp., Caulopteris sp., Pterophyllum daihoense Kawasaki, including 11 species in 7 genera. The research result shows that these fossil plants belong to the Cathaysian elements. The present flora can be compared with contemporaneous floras from the Cathaysian Province. On the basis of the floral composition, the geological age of the Shanxi Formation flora belonged to the early Early Permian, corresponding approximately to Asselian and Sakmarian. |
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| Keywords: | Wuda area Inner Mongolia early Early Permian the Shanxi Formation flora |
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