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吉林桦甸二叠系寿山沟组的牙形刺及其地质时代

CONODONTS FROM THE PERMIAN SHOUSHANGOU FORMATION IN HUADIAN COUNTY, JILIN PROVINCE AND ITS GEOLOGICAL AGE

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【Author】 WANG Chengyuan 1,2), LI Dongjin3), WANG Guangqi3), CHEN Ming3) and ZHAO Juan3) 1) College of Paleontology, Shenyang Normal University, Shenyang 110034 2) Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008 3) Regional Survey of Geology and Mineral Resources of Jilin Province, Changchun 130022

【机构】沈阳师范大学古生物学院；中国科学院南京地质古生物研究所；吉林省区域地质矿产调查所；

【摘要】本文作者在寿山沟组命名剖面系统地采集了 38 个样品,其中 28 个样品中发现了牙形刺,主要有 Mesogondolella idahoensis , M.lamberi , M.siciliensis , Sweetognathus expansus , Sweetognathus sp. ,这一动物群清楚地证明寿山沟组的时代为早二叠世空谷期( Kungurian )最晚期的,仍没进入中二叠世。属特提斯牙形刺省,但海水温度可能稍低些。 Monodiexodina 的时代始于 Kungurian 期的最晚期。更多还原

【Abstract】 Thirty-eight samples have systematically collected from the Shoushangou Formation in central Jilin Pro-vince, in which 28 samples yields conodonts, including mainly Mesogondolella idahoensis, M. lamberti, M. siciliensis, Sweetognathus expansus, Sweetognathus sp. This conodont fauna clearly indicatets that the age of the Shou-shangou Formation should be assigned to the latest Kungurian. Biogeographically, this fauna should be belong to Tethyan conodont Province(TP)(=Ouchita-Cathaysia conodont Province(OCP), but the temperature of water could be a little lower than normal TP (=OCP)water. The range of fusulinid Monodiexodina is from the latest Kungurian to Wordian.更多还原

【关键词】牙形刺；寿山沟组；空谷期；特提斯区；吉林；
【Key words】 conodonts； Shoushangou Formation； Kungurian； Tethyan area； Jilin Province；

【基金】国家自然科学基金重点项目(40839910)、创新群体项目(41221001)、重大项目(41290260)和面上项目(41072008)的共同资助

【文献出处】微体古生物学报 ,Acta Micropalaeontologica Sinica , 编辑部邮箱 ,2013年01期

【分类号】P534.46
【被引频次】5
【下载频次】238

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