江苏徐州一带地处华北陆台的南缘,寒武纪地层分布于淮阳山脉中各复式背、向斜的两翼,呈北东向展布。该区寒武系出露良好,剖面完整,层序井然。尤其是中、下寒武统特别发育,彼此间为连续沉积。其中化石丰富,尤以三叶虫动物群较繁盛,演化亦较迅速。因此,详细研究该地区寒武纪地层和三叶虫动物群,不仅对寒武系的划分,各组化石带的建立,各带三叶虫内容的充实,以及对三叶虫的系统演化、迁移和发展的认 Xuzhou, Jiangsu Province is located in the southern margin of the North China Rutai, Cambrian strata in the Huaiyang Mountains in the back, the syncline wings, showed a north-east distribution. The Cambrian Department of the outcrop, good profile, orderly. In particular, the Middle and Lower Cambrian developed especially for the continuous deposition of each other. Among them, the fossils are abundant, especially the trilobite fauna are more prosperous and evolve more rapidly. Therefore, a detailed study of the Cambrian stratigraphy and trilobite fauna in the area not only contributed to the division of the Cambrian, the establishment of fossil zones in each group, the enrichment of the contents of each trilobite, and the systematic evolution of the trilobite, Migration and development of recognition