首页 | 本学科首页   官方微博 | 高级检索  
   检索      

陕南早寒武世早期Quadrapyrgites再研究
引用本文:刘云焕,李勇,弓虎军,张志刚,马秋红,吕晓强,陈金,闫亭廷.陕南早寒武世早期Quadrapyrgites再研究[J].古生物学报,2009,48(4).
作者姓名:刘云焕  李勇  弓虎军  张志刚  马秋红  吕晓强  陈金  闫亭廷
作者单位:1. 长安大学资源学院国土资源部成矿作用及其动力学重点实验室,西安,710054;西北大学地质系,西安,710069
2. 长安大学资源学院国土资源部成矿作用及其动力学重点实验室,西安,710054
3. 西北大学地质系,西安,710069
基金项目:国家重点基础研究发展计划项目(2003CB214602-02)提供支持 
摘    要:处于"寒武纪生命大爆发"序幕阶段的梅树村期,生物类群大规模辐射,身体构型快速革新,与前寒武纪生物群面貌明显不同.最近在陕南宁强宽川铺地区梅树村期地层中发现了大量五辐射Punctatus及部分四辐射四方塔形壳属Quadrapyrgites,其中包括1个新种Quadrnpyrgites undulatuscostalis sp.nov..在此基础上对Quadrapyrgites进行了属征补充.双胚层腔肠动物的出现标志着地球生命史的真后生动物演化开端,在生物起源演化历程上占据着关键的位置.本文为研究真后生动物起源演化、生物辐射、体型构建提供了重要实证.

关 键 词:宽川铺段  灯影组  陕西宁强

NEW DATA ON QUADRAPYRGITES FROM THE EARLIEST CAMBRIAN OF SOUTH SHAANXI
LIU Yun-huan,LI Yong,GONG Hu-jun,ZHANG Zhi-gang,MA Qiu-honga,L Xiao-qiang,CHEN Jin,YAN Ting-ting.NEW DATA ON QUADRAPYRGITES FROM THE EARLIEST CAMBRIAN OF SOUTH SHAANXI[J].Acta Palaeontologica Sinica,2009,48(4).
Authors:LIU Yun-huan  LI Yong  GONG Hu-jun  ZHANG Zhi-gang  MA Qiu-honga  L Xiao-qiang  CHEN Jin  YAN Ting-ting
Institution:LIU Yun-huan,LI Yong,GONG Hu-jun,ZHANG Zhi-gang,MA Qiu-honga,L(U) Xiao-qiang,CHEN Jin,YAN Ting-ting
Abstract:The Meishucun stage is a crucial interval for studying the Cambrian Explosion,when an evolutionary radiation and innovation of metazoan bauplans took place and different association of organism have been shaped.In this paper we report several rare fossils of Quadrapyrgites with a fourfold symmetry.By systematically studying these fossils,the authors propose herein Quadrapyrgites undulatuscostalis sp.nov.and provide additional discussions on the Genus Quadrapyrgites.The appearance of coelenterates marks the real beginning of metazoan evolution.Therefore,it has the prominent position in the origin and evolutlonary history of organisms.The new material provides new evidence for the origin,evolution and the bauplan of the metazoan during the early Stage of the Cambrian Explosion.
Keywords:Quadrpyrgitesundulatuscostalis sp  nov    Quadrapyrgites undulatuscostalis sp  nov    Kuanchuanpu Member  Dengying Formation  Ningqiang  Shaanxi
本文献已被 万方数据 等数据库收录!
点击此处可从《古生物学报》浏览原始摘要信息
点击此处可从《古生物学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号