广西东攀剖面二叠—三叠系界线附近头足类动物群与地质时代讨论Permian-Triassic Cephalopods from Dongpan Section,Guangxi, and Its Geological Significance
卜建军;吴顺宝;张宏亮;蒙有言;张凡;张立原;
摘要(Abstract)：
在广西东攀二叠—三叠系界线剖面中发现了Domatacerasguangxiensis,LopingocerasguangdeensisZhao,LiangetZheng,Schizolobocerasfusuiensis,Agathicerassp.,Stacheocerassp.,PernodocerasrobustumChaoetLiang,Dushanocerascf.ro-tolariumZhao,LiangetZheng,Huananocerascf.perornatumChaoetLiang,Qianjiangocerassp.,Laibinocerascf.compressumYang,Glyptophicerassp.,Lytophicerascf.chamunda(Diener),OphicerastingiTien,Ophicerassp.化石。在剖面的第2~12-2层产Pernodoceras,Dushanoceras,Huananoceras和Qianjiangoceras化石,均为长兴期菊石带Pseudotirolites-Rotodiscoceras的共生化石。第12-3层产长兴期菊石Laibinocerascf.compressumYang。第13-1A~16层产Lytophiceras和Ophiceras,为早三叠世菊石带Ophiceras-Lytophiceras的带化石。东攀剖面菊石的分布及其与华南其他地区的对比研究表明,广西东攀剖面二叠—三叠系界线位于第12-3层(厚55cm)内部或者位于第13-1A层的底部。
关键词(KeyWords)： 头足类动物群;二叠—三叠系界线;广西东攀剖面
基金项目(Foundation): 国家自然科学基金项目(40232025;40502001;40325004)
作者(Author): 卜建军;吴顺宝;张宏亮;蒙有言;张凡;张立原;
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