Early-Middle Permian palynoflora of Shandong Province,eastern North China

作     者：Tian-Tao Yin Shou-Jun Li Xiang-Yu Zhang Xiu-Li Zhao Tian-Tao Yin;Shou-Jun Li;Xiang-Yu Zhang;Xiu-Li Zhao

作者机构：College of Earth Science and EngineeringShandong University of Science and TechnologyQingdao 266590Shandong ProvinceChina China Chemical Geology and Mine Bureau Shandong Geological Prospecting InstituteJi'nan 250013Shandong ProvinceChina. 

出 版 物：《Journal of Palaeogeography》 (古地理学报（英文版）)

年 卷 期：2020年第9卷第4期

页      面：456-468页

核心收录：

学科分类：0303[法学-社会学] 0710[理学-生物学] 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] 0708[理学-地球物理学] 0705[理学-地理学] 0815[工学-水利工程] 0813[工学-建筑学] 0833[工学-城乡规划学] 

基　　金：This study was supported by the Open Foundation for the Modern Key Laboratory of Paleontology and Stratigraphy Nanjing Institute of Geology and Paleontology Chinese Academy of Sciences(Grant No.123104). 

主　　题：Permian Spores and pollen Vegetation succession Paleoclimate Environmental change Taiyuan Formation Shanxi Formation 

摘      要：The Permian Taiyuan and Shanxi formations exposed in Shandong Province,eastern North China,contain abundant spores and pollen.In this study,a total of 42 genera and 146 species of spores and pollen from these Permian formations,native to northern China,are identified and related to the three epochs of the Permian Period(Cisuralian,Guadalupian,and Lopingian Epochs)as two assemblages:Assemblage I—the Laevigatosporites-Granulatisporites assemblage,inferred as the Cisuralian(~298.9-272.9 Ma);and,Assemblage II—the Gulisporites-Sinulatisporites assemblage,inferred as the Guadalupian(~272.9-259.1 Ma).Assemblage I represents growing ferns,whereas Assemblage II represents gymnosperms.The assemblage division and analysis indicated that the palaeoclimate of the study area during Early-Middle Permian time was dominated by warm and humid conditions,and later in the Middle Permian changed into moderately dry conditions.