摘要
本文报道的瓶状微化石Protolagena lambata(gen.et sp.nov.),P.gaojiashanensis (gen.et sp.nov.),P.papillata(Zhang;1986)和P.sp.产于陕西宁强胡家坝地区的震且系灯影组高家山段。它与后生动物实体和遗迹化石共生,是高家山生物群的一个重要组成分子。它的发现是继湖北房县下寒武统西蒿坪组和峡东地区震旦系陡山沱组发现瓶状微化石之后的又一新产地和层位,填补了震且纪灯影期该类化石的空白,对探讨由晚前寒武纪束期至早寒武世早期的带壳生物的发生和演化具有重要意义。
The vasiform microfossils reported in this thesis (Protolagena limbata gen, et sp. nov., P. gaojiashanensis gen. et sp. nov., P. papillata Zhang 1986 and P. sp. )were found in Gaojiashan Member, Dengying Formation, Sinian System which is located in Hujiaba area, Ningqiang County, Shaanxi Province. They are usually symbiotic with body and trace fossils of metazoa and form an important part in the Gaojiashan Biota in China. This is onather important discovery after the finding of vasiform microfossils in Doushatuo Formation, Sinian System on the eastern Yangtze Gorges and Xihaoping Formation, Lower Cambrian Series in the Fangxian County, Hubei Province in China. It fills the blanks in the study on the vasiform microfossils in Dengying Formation, Sinian System, and sheds a light on the research of the formation and evolution of Late Precambrian to earliest Cambrian shelly animals.
基金
国家自然科学基金项目
