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The materials included in this short paper were collected from Yunnan,Kuangsi,Szechuan,Shensi and Kansu by members of the National GeologicalSurvey of China and men who are interestsd in geology and palaeontology.Brief
The materials included in this short paper were collected from Yunnan, Kuangsi, Szechuan, Shensi and Kansu by members of the National Geological Survey of China and men who are interestsd in geology and palaeontology.Brief