Vegetation changes across the Eocene-Oligocene transition:Global signals *** development

作     者：Mengxiao WU Lutz KUNZMANN Shufeng LI Vasilis TEODORIDIS Zhekun ZHOU Tao SU 

作者机构：CAS Key Laboratory of Tropical Forest EcologyXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China Senckenberg Natural History Collections DresdenKonigsbrücker LandstraBe 159Dresden 01109Germany Department of Biology and Environmental StudiesFaculty of EducationCharles UniversityMagdalény Rettigové411639 Prague 1Czech Republic State Key Laboratory of Oil and Gas Reservoir Geology and ExploitationChengdu University of TechnologyChengdu 610059China Institute of Sedimentary GeologyChengdu University of TechnologyChengdu 610059China 

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

年 卷 期：2024年第67卷第9期

页      面：2937-2952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] 0713[理学-生态学] 

基　　金：supported by the National Key R&D Program of China(Grant No.2022YFF0800800) the National Natural Science Foundation of China(Grant Nos.42072024&42320104005) the Sino-German(CSC-DAAD)Postdoc Scholarship Program(Grant No.57607866) 

主　　题：Eocene-Oligocene transition Plant fossil Paleoclimate Leaf architecture Biodiversity 

摘      要：The Eocene-Oligocene transition(EOT)marked a rapid global cooling event,often considered as the beginning of the modern icehouse *** by various factors,including tectonic activity and paleogeographic settings,the terrestrial records indicate a diverse response of fauna and vegetation to this global *** examined nine macrofossil assemblages from seven fossil localities on the southeastern margin of the Tibetan Plateau and from the mid-latitudinal Europe ranging from the latest Bartonian and Priabonian(37.71-33.9 Ma)to the Rupelian(33.9-27.82 Ma).Our aims were to trace and compare the vegetation history of both regions in the late Eocene and early *** results show that both regions experienced changes in vegetation composition in response to climate change,characterized by a decrease in the percentages of broad-leaved evergreen elements and distinctive changes in general vegetation types.A general change in the overall vegetation type from subtropical broad-leaved evergreen forests in the late Eocene to temperate broad-leaved mixed deciduous evergreen forests,or mixed mesophytic forests,in the early Oligocene is recognized in both *** results indicate a clear change in leaf architecture,leaf margin states,and secondary venation types in the mid-latitudinal Europe,while the results from the southeastern margin of the Tibetan Plateau show a distinct reduction in leaf *** data suggest that both global and regional factors played key roles in shaping the vegetation in the two regions.