[关键词]
[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：Sinoquadraticus poratus gen.et sp.nov和Sinoquadraticus wenganensis gen. et sp.nov.。并对Sinocyclocylicus的部分特征进行补充。
[Key word]
[Abstract]
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.
[中图分类号]
Q913.63
[基金项目]
长安大学校科研和教改项目，，
