A REVISION OF THE DARRIWILIAN BIOSTRATIGRAPHIC CONODONT ZONATION IN TANGSHAN,HEBEI PROVINCE BASED ON NEW CONODONT COLLECTIONS
WANG Zhi-hao;BERGSTR?M S M;ZHEN Yong-yi;ZHANG Yuan-dong;WU Rong-chang;Nanjing Institute of Geology and Palaeontology;Chinese Academy of Sciences;School of Earth Sciences;Division of Earth History;The Ohio State University;Geological Survey of New South Wales;Division of Resources & Energy;NSW Trade &Investment;W.B.Clarke Geoscience Centre;Key Laboratory of Economic Stratigraphy and Palaeogeography;Chinese Academy of Sciences;