NEW ZONATION AND CORRELATION OF THE UPPER CAMBRIAN CHANGSHANIAN STAGE IN NORTH CHINA
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Abstract:
Through a preliminary study of the Changshanian trilobites collected from the Taizihe Valley of Liaoning by the Taizihe stratigraphical team (Wang et al., 1954), from the Qingshuihe region of Nei Monggol by F. H. Chia and Q. L. Kao in 1952, and from the Kushan and Tai’an areas of Shandong by Lu and Dong (1953). 12 new genera and 17 new species are identified (pls. I—III), and six faunal zones and two subzones are established. They are as follows in descending order: VI. Zone with Acanthometopus obesus gen. et sp. nov. (P1. III, figs. 1—4)
