| 贵州紫云石头寨晚二叠世—中三叠世牙形石动物群及生态意义 |
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| 引用本文： | 丁梅华,黄清华. 贵州紫云石头寨晚二叠世—中三叠世牙形石动物群及生态意义[J]. 地球科学, 1990, 0(3) |
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| 作者姓名： | 丁梅华 黄清华 |
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| 作者单位： | 中国地质大学(丁梅华)，中国科学院南京地质古生物研究所(黄清华) |
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| 摘 要： | 本文所研究的贵州紫云石头寨上二叠统长兴组—中三叠统新苑组牙形石,共计5属14种,其中Hindeodus julfensis在华南系首次发现。文中对下三叠统罗楼组上部—中三叠统新苑组下部共建立了3个牙形石带,它们是Neospathodus timorensis带、Neogondolella regale带和N.constricta带。其中N.regale在华南属首次报导。此外就N.timorensis带的时代归属作了讨论,认为该带应属早三叠世晚期。而N.regale带为安尼阶最下部的牙形石带。文中还对牙形石的生态作了初步探讨。
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| 关 键 词： | 贵州紫云石头寨 晚二叠世 早三叠世 中三叠世 牙形石动物群 生态 |
LATE PERMIAN-MIDDLF TRIASSIC CONODONT FAUNA AND PALEOECOLOGY IN SHITOUCHAI,ZIYUN COUNTY, GUIZHOU PROVINCE |
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| Ding Meihua. LATE PERMIAN-MIDDLF TRIASSIC CONODONT FAUNA AND PALEOECOLOGY IN SHITOUCHAI,ZIYUN COUNTY, GUIZHOU PROVINCE[J]. Earth Science-Journal of China University of Geosciences, 1990, 0(3) |
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| Authors: | Ding Meihua |
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| Abstract: | The conodonts of the Upper Permian Changxing Formation-Middle Triassic Xingyuan Formation from Shitouchia, Ziyun county, Guizhou province covered here total to 5 genera, 14 species, among which Hindeodus julfensis is discovered for the first time in the South China. Three conodont zones are established for the upper part of the Luolou Formation of the Lower Triassic and the lower part of the Xingyuan Formation of the Middle Triassic. They arc Neospathodus timorensis zonc,Neogondolella regale zone and Neogondolella con-strica zone, N.regale zone is published for the first time in the South China. Moreover, the age of N. timorensis is discussed. It is confirmed that this zone belongs to the late Early Triassic and N. regale zone to the lowest Anisian. In addition, The paper deals with preliminarily the conodont paleoecology. |
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| Keywords: | shitouchia Ziyun county Guizhou province Late Permian Early Triassic Middle Triassic conodont fauna ecology. |
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