青海都兰晚石炭世牙形类的发现

    THE DISCOVERY OF SOME LATE CARBONIFEROUS CONODONTS FROM DULAN,QINGHAI

    • 摘要: 青海都兰晚石炭世牙形类的发现1季强(地质矿产部中国地质博物馆北京100034)青海都兰地区石炭纪地层分布广泛,均属浅水相台型沉积,含有丰富的珊瑚、腕足类、类等底栖化石,尤以大海滩、关角牙河和落山一带出露最佳。60年代,青海省地质矿产局区域地质测量队...

       

      Abstract: The Carboniferous strata are widely distributed in the Dulan County,Qinghai Province,northwestern China,belonging to the shallow water platform deposits with rich benthonic fossils,such as corals.brachiopods andfusulinids.The Present paper first reports some late Carboniferous conodonts from the Kruk Formation in the Shangxitai area,Dulan County,Qinghai Province,such as Stretognathodus expansus,Streptognathodus sp.,Idiognathodus cf.sinuosis,Idiognathodus sp.and Neognathodus sp.A.This discovery is clearly of great significance for the stratigraphic subdivision and correlation of the Carboniferous in the Dulan area of Qinghai.

       

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