Conodont diversification during the Ordovician:A perspective from North China and Tarim(Northwestern China)

作     者：WU RongChang Ian G. PERCIVAL Svend STOUGE ZHAN RenBin 

作者机构：State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences W. B. Clarke Geoscience Centre Geological Survey of New South Wales Geological Museum University of Copenhagen 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2014年第57卷第3期

页      面：397-407页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：supported by National Natural Science Foundation of China(Grant Nos.41202005,41221001,40825006) State Key Laboratory of Palaeobiology and Stratigraphy(Grant No.Y126110409) Chinese Academy of Sciences(Grant No.KZCX2-YW-Q05-01) a contribution to Project IGCP 591:The Early to Middle Paleozoic Revolution 

主　　题：conodont diversification Ordovician North China Tarim 

摘      要：Review of the literature on Ordovician conodont diversification in palaeoplates of North and Western China reveals that four diversity peaks are present in North China,occurring in the middle Tremadocian,early Floian,late Floian,and late Darriwilian,with three of these peaks(excepting that in the late Floian)also being recorded in *** diversification intervals are present in North China,during the Tremadocian,late Floian,early and middle Darriwilian;comparable intervals are observed in the early and late Tremadocian,early Floian,and the Middle Ordovician in *** main conodont diversification episode in both palaeoplates took place in the Darriwilian,at the time of the Great Ordovician Biodiversification Event.A comparison of conodont diversity patterns in different palaeoplates(North China,Tarim,and South China)demonstrates that conodont radiation events mainly occurred within the Tremadocian,Floian,and *** diversifications in these paleoplates also display some *** contrasting with Tarim and South China,North China witnessed a rapid conodont diversification during late Floian *** diversity in North China and Tarim increased continually and reached a peak in the late Darriwilian,concurrent with a prominent decreasing trend in South *** of conodont diversification in these three palaeoplates may be related to their palaeogeography and tectonic *** conodont diversifications in North China and Tarim are analysed on the background of palaeoenvironments,the main episodes are seen to be partly coincident with second order sea-level changes,particularly in North *** general,conodont radiation correlates with large scale transgressions.