川东南兴文地区长兴期腕足动物及其群落结构  

CHANGXINGIAN BRACHIOPODS FAUNAS AND THEIR COMMUNITIES STRUCTURE IN THE XINGWEN AREA OF SOUTHEAST SICHUAN PROVINCE

作　　者：曾勇[1] 陈伟[1] 吴财芳[1] 徐德兰[1] 杨国勇[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008

出　　处：《古生物学报》2004年第4期597-601,共5页Acta Palaeontologica Sinica

基　　金：国家自然科学基金 (No .40 2 72 0 16) ;现代古生物学和地层学国家重点实验室 (No .0 43 10 5 )资助课题

摘　　要：通过川东南兴文地区长兴期腕足动物地层的研究 ,总结了腕足动物群的性质 ,指出了本区长兴期腕足动物群不同于灰岩相类群 ,也不同于硅质岩相类群 ,而属于灰岩、砂页岩混合相类群。文章重点研究了本区腕足动物群落结构 ,并提出了生态类群这一新观点 ,指出生态类群是以生态学而不是以纯分类学标准进行分类的 ,这有助于群落生态研究中简化群落内物种间的复杂关系。The characters of the Changxingian brachiopods are summarized on the basis of researching the Changxingian brachiopod-bearing strata in the Xinwen area of southeast Sichuan Province. The paper indicates that the Changxingian brachiopods in this area differ from those in limestone lithofacies and siliceous lithofacies. They belong to the faunas of mix-lithofacies of limestone, sandstone and shale. The community structure of brachiopods in the Xingwen area is researched as emphasis and a new view——ecopopulation is put forward. The paper points out that the standard of classifying ecopopulation is not pure taxology but ecology, which helps to predigest the complex relations among community species in studying community ecology.

关 键 词：腕足动物 古群落 生态类群 长兴期 化石 

分 类 号：Q915[天文地球—古生物学与地层学]