【摘要】 本文报道的小壳化石采自浙江江山下寒武统荷塘组和上震旦统灯影组,共发现13属15种,包括1个新属2个新种。研究结果表明,在荷塘组下部和灯影组上部可建立两个小壳化石组合,即灯影组磷矿层段的Anabarites-Protohertzina组合带,与梅树村阶Ⅰ组合带对比;荷塘组石煤层段的组合带,可与梅树村阶Ⅱ组合带或包括Ⅲ组合带对比。更多还原

【Abstract】 The small shelly fossils dealt with in this paper were collected from lower Cambrian Hetang formarion and upper Sinian Dengying formation in Jiangshan county, Zhejiang province. They contain 13 genera and 15 species, including I new genus and 2 new species. Present study shows that two small shelly fossil assemblages would be established in the top part of Dengying formation and basal part of Hetong formation. The Anabarites-Protohertzina assemblage from phosphorite member of Dengying formation could be correlated with the first assemblage from Meishucunian stage; and the SiphogonuchitesLopochites assemblage from stonecoal member of Hetang formation correlated with the second and/or third assemblages from Meishucunian stage. The authors tend to belive that the Meishucunian stage exists in the western zhejiang province and further that the boundary between the Cambrian and Sinian could be linde up at the bottom of phosphorite member of Dengying formation.更多还原