Abstract
Studies carried out during the last decade have permitted the establishment of palynological zonal schemes for the Namurian deposits in China. The palynological zones proposed in this paper are based on material from Jingyuan, northwest China, where the exposures are well-developed without any apparent break and miospores are abundant and well preserved allowing the recognition of successive Namurian miospore zones. Seven miospore assemblage zones, i.e. Zones TA, VR, SB, KM, BP, AS and TQ, equivalent to goniatite Zones E 1, E 2, H, R 2, R 2-G 1, lower G 2 and upper G 2, respectively, according to the ammonoids and conodonts associated with them, covering the age from Namurian A to early Westphalian A, have been described. Some correlations of zones recognized in Jingyuan and those of Western Europe are briefly discussed.
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