贵州瓮安新元古代陡山沱组磷酸盐化管柱状微体化石新材料  

NEW MATERIALS OF PHOSPHATIZED CYLINDRICAL AND TABULATE MICROFOSSILS FROM THE NEOPROTEROZOIC DOUSHANTUO FORMATION AT WENG'AN, GUIZHOU, SOUTH CHINA

作　　者：李勇 张兴亮[1] 郭俊峰[2] 丁莲芳[2] 韩健[1] 舒德干[1] 

机构地区：[1]西北大学地质系早期生命研究所,西安710069 [2]长安大学资源学院,西安710054

出　　处：《古生物学报》2003年第2期200-207,共8页Acta Palaeontologica Sinica

摘　　要：在用醋酸浸泡处理采自贵州瓮安新元古代陡山沱组磷酸质岩石样品时 ,获得大量微体动物骨骼化石。文中重点报道部分管柱状微体化石 ,即 :Sinoquadraticusporatusgen .etsp .nov .和Sinoquadraticuswenganensisgen .etsp .nov .。并对Sinocyclocylicus的部分特征进行补充。In 1992 Xue et al. reported some skeletal fossils, including one genus and two species, from the Neoprotorozoic Doushantuo Formation at Weng'an, Guizhou, and assigned them to Echinodermata. In this paper, new materials of phosphatized cylindrical and tabulate microfossils, including a new genus and two new species, are described from the same layer and locality. It provides us much more evidence not only to display the Neoproterozoic biodiversity, but also to explore the origin and the early evolution of biomineralization.

关 键 词：贵州瓮安 新元古代 陡山沱组 磷酸盐化管柱状微体化石 

分 类 号：Q914[天文地球—古生物学与地层学]