摘要
通过对扬子地台北缘─－宜昌峡东黄陵背斜东西两翼若干条晚震旦世陡山沱组剖面的系统研究，发现并获得了丰富的微古植物及宏体生物化石；并依次描述了其类型特征，总结了其在垂向地层中的分布演化规律，建立了两个宏体生物化石群落。最后，初步讨论了区内软躯体动物和具骨骼等后生动物的起源。
Through systematical studying several stratigraphic profiles of Doushantuo Formation in the upper Sinian in Tianjiayuanzi and Miaohe areas at the west and east sides of the Huangling anticline on thenorthern margin of the Yangtze platform,this paper shows full data of macrofossils.Their characteristics aredescribed sequentially and the distribution evolutionary rules in vertical stratigraphic sequence are analyzed.Then, the two macrofossils communites are established. Finally,this paper discussed the origin of soft body animals and the ones with skeletal organisms.
基金
国家自然科学基金
关键词
晚震旦世
陡山沱组
生物化古
古生物
生态地层学
Eastern Yangtze Gorges,Doushantuo Formation,macrofossil,ecostratigraphy
