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INTRODUCTION In the course of the reconnaissance survey in eastern Yunnan,Mr.C.H.Lu and I had the opportunity to find a rich fauna in a series ofbrown,reddish yellow and grey shales overlain by a limestone formation
INTRODUCTION In the course of the reconnaissance survey in eastern Yunnan, Mr.C.H.Lu and I had the opportunity to find a rich fauna in a series ofbrow, reddish yellow and gray shales overlain by a limestone formation