| 中国南部二叠、三叠纪“混生生物群”及二叠、三叠系界线 |
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| 引用本文： | 何锡麟,沈树忠.中国南部二叠、三叠纪“混生生物群”及二叠、三叠系界线[J].吉林大学学报(地球科学版),1991(2). |
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| 作者姓名： | 何锡麟 沈树忠 |
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| 作者单位： | 中国矿业大学地质系
(何锡麟),中国矿业大学地质系(沈树忠) |
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| 摘 要： | 本文系统描述了中国南部二叠、三叠纪“混生生物群”。根据笔者的统计,目前巳经发现有“二叠纪型”分子36属53种与三叠纪菊石、双壳类、牙形剌共生。 笔者认为中国南部可以以牙形剌Anchignathodus parvus 的出现作为三叠系的底界,双壳类Pteria ussurica variabilis,菊石 Hypophiceras的出现可以作为三叠系开始的辅助标志。文中还将这一界线与世界上其它地区的二叠、三叠系界线进行了对比。
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| 关 键 词： | “混生生物群” 二叠、三叠系界线 中国南部 |
PERMO-TRIASSIC "MIXED BIOTA" IN SOUTH CHINA AND PERMO-TRIASSIC BOUNDARY |
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| He Xilin Shen Shuzhong.PERMO-TRIASSIC "MIXED BIOTA" IN SOUTH CHINA AND PERMO-TRIASSIC BOUNDARY[J].Journal of Jilin Unviersity:Earth Science Edition,1991(2). |
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| Authors: | He Xilin Shen Shuzhong |
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| Abstract: | This paper systematically describes the Permo-Triassic "mixed biota" in South China. According to the present data, 53 "Permian-type" species which belong to 36 genera are associated with Triassic bivalves, ammonoids and conodonts. These discoveries show that South China has many continuous Permo-Triassic sections, which are very significant in indicating the Permo-Triassic boundary.The writers consider that the appearance of Anchignathodus parvus can be adopted as the base of Triassic and Pteria ussurica variabilis and Hypo-phiceras may be regarded as the auxiliary indicators of the lowerest Triassic in South China. The correlation of Permo-Triassic boundary between South China and other regions in the world has also been discussed in this paper. |
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| Keywords: | mixed biota Permo-Triassic boundary South China |
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