| 江西玉山Etagraptus approximatus笔石带疑源类化石的发现及其意义 |
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| 引用本文： | 许玩宏,幽建菊.江西玉山Etagraptus approximatus笔石带疑源类化石的发现及其意义[J].中山大学学报(自然科学版),2001,40(1):101-105. |
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| 作者姓名： | 许玩宏 幽建菊 |
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| 作者单位： | 1. 惠州大学地理系,
2. 南京大学, |
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| 基金项目： | 广东省自然科学基金资助项目(984175) |
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| 摘 要： | 首次报道发现于江西玉山Etagraptus approximatus笔石带的疑源类化石，计12属23种，其中包括3个未定种，含量最高的3属是Stelliferidium、Polygonium、Micrhystridium，占总含量的77．4％，此外，Multiplicisphaeridium、Caldariola、Baltispharidium、Pteinosphaeridium也较常见，一定程度上反映了阿伦尼格期早期疑源类组合面貌。
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| 关 键 词： | 疑源类组合 早奥陶世 笔石带 江西玉山 疑源类化石 阿伦尼格期 组合面貌 含量 |
| 文章编号： | 0529-6579(2001)01-0101-04 |
| 修稿时间： | 2000年3月21日 |
Discovery of Early
Ordovician Acritarchs from the Ningguo Formation in Yushan Area, Jiangxi Province, and Its
Geological Significance |
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| XU Wan-hong,YOU Jian-ju.Discovery of Early
Ordovician Acritarchs from the Ningguo Formation in Yushan Area, Jiangxi Province, and Its
Geological Significance[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2001,40(1):101-105. |
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| Authors: | XU Wan-hong YOU Jian-ju |
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| Abstract: | A well-preserved acritarchs assemblage was discovered in the Etagraptus approximatus zone of the Ningguo Formation in Yushan County, Jiangxi Province, and 23 species belonging to 12 genera were recognized for the first time. Three representative genera, Stelliferidium, Polygonium, Micrhystridium, Amounting to 77.4%, with the frequently occurrence of Multiplicisphaeridium, Caldariola, Baltispharidium, Pteinosphaeridium and Tetraniveum arenigum, seem to indicate the studied assemblage belongs to the Arenig age, which is basically in ac- cordance with the age indicated by graptolites. |
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| Keywords: | acritarchs Early Ordovician graptolite zone Yushan area Jiangxi Province China |
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