A Novel Gymnosperm Wood from the Lopingian(Late Permian)in Zhangzi,Shanxi,North China and Its Paleoecological and Paleogeographic Implications  

作　　者：Xiao Shi Jianxin Yu Yuewu Sun Zhen Xu Hui Li 

机构地区：[1]College of Earth Sciences,Jilin University,Changchun 130061,China [2]International Center of Future Science,Dinosaur Evolution Research Center,Jilin University,Changchun 130012,China [3]State Key Laboratory of Biogeology and Environmental Geology,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China [4]Research Center of Palaeontology and Stratigraphy,Jilin University,Changchun 130026,China [5]Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation,East China University of Technology,Nanchang 330013,China

出　　处：《Journal of Earth Science》2024年第1期167-176,共10页地球科学学刊（英文版）

基　　金：supported by the National Natural Sciences Foundation of China(Nos.92055201 and 31700183)。

摘　　要：The Permian-Triassic transition saw extreme climatic changes that severely impacted the terrestrial ecosystem.Fossil plants,particularly fossil woods,are sensitive to climatic changes,and they,therefore,are unique materials revealing extreme environmental and climatic changes on land at that time.Abundant conifer woods were discovered in the Lopingian(Late Permian)strata of the Sunjiagou Formation in Shanxi Province,North China.The newly finding permineralized woods record the unique landscape of Lopingian North China.They represent a new conifer genus and species:Shanxiopitys zhangziensis gen.et sp.nov.Analyses of growth pattern and anatomical characteristics of the fossil woods indicate these trees grew under optimal growing conditions,and without seasonal growth cessation.However,climate signals from leaf fossils,vertebrate fossils and sedimentary evidences indicate a strongly seasonal climate in North China during the Lopingian.Thus,it is speculated that these trees likely lived in the gallery forests,which were distributed along the paleo-rivers within a seasonal landscape in the central North China block during the Lopingian.

关 键 词：Shanxiopitys zhangziensis gen.et sp.nov. WOOD ecology GEOGRAPHY gallery forest LOPINGIAN North China 

分 类 号：Q914[天文地球—古生物学与地层学] P531[生物学—古生物学]