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一、前言内蒙古的志留纪地层,最早为翁礼异(1955)所发现。他采自白云鄂博东北20km 处灰岩露头中的珊瑚化石,经中国科学院南京古生物研究所吴望始(1958)研究认为,这些化石的地质时代,似应属于志留纪,很可能为中志留世。此后20多年来,随着区域地质调查和矿产普查工作的展开,内蒙古各地不断发现志留纪地层和不同类型的志留纪生物群,
I. Foreword The Silurian strata in Inner Mongolia was first discovered by Weng Liyi (1955). He collected from the limestone outcrops 20km northeast of Bayan Obo coral fossils, by the Chinese Academy of Sciences Nanjing Institute of paleontology Wu Wang first (1958) study that the fossil geological age, should belong to the Silurian, is likely to be Chi Stay in the world. In the 20 years since then, with the commencement of the regional geological survey and mineral census work, the Silurian strata and different types of Silurian biota have been found in various places in Inner Mongolia.