New material of Coniopteris simplex from the Middle Jurassic of the Ordos Basin,Inner Mongolia,China and implications on its spatio-temporal distribution and paleogeography

作     者：Yun-Feng Li Chang-Lu Zhang Fei Liang Xiao Tan Fan-Hao Gong Chun-Lin Sun Tao Li Yu-Ling Na Yun-Feng Li;Chang-Lu Zhang;Fei Liang;Xiao Tan;Fan-Hao Gong;Chun-Lin Sun;Tao Li;Yu-Ling Na

作者机构：Research Center of Paleontology and StratigraphyJilin UniversityChangchun 130026Jilin ProvinceChina College of Earth SciencesJilin UniversityChangchun 130061Jilin ProvinceChina College of PaleontologyShenyang Normal UniversityShenyang 110034Liaoning ProvinceChina Key Lab of Evolution of Past Life in NE AsiaMinistry of Natural ResourcesShenyang Normal UniversityShenyang 110034Liaoning ProvinceChina Shenyang Center of Geological SurveyChina Geological SurveyShenyang 110034Liaoning ProvinceChina 

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

年 卷 期：2024年第13卷第2期

页      面：199-211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：financially supported by National Natural Science Foundation of China(Grant Nos.42172011,42172017,41902009,42293280 and 31800182) State Key Laboratory of Palaeobiology and Stratigraphy(Nanjing Institute of Geology and Palaeontology,CAS)(Grant No.183117) Liaoning Provincial Natural Science Foundation(Grant No.2021-BS-158) 

主　　题：Coniopteris simplex Yan'an Formation Middle Jurassic Inner Mongolia Paleogeography 

摘      要：Coniopteris simplex is a common component in many Jurassic ***,due to morphological variations in sterile fronds and incomplete preservation of reproductive organs,its classification has been controversial for a long ***,we present new material collected from the Middle Jurassic Yan’an Formation in the Ordos Basin,Inner *** new material reveals important morphological characters,including hemi-dimorphic fronds,two forms of sterile pinnae,short-stalked sori and sporangia on fertile fronds,annulus of sporangium composed of about 30 cells,in situ rounded triangular spores with protruded suture,and the lips of trilete laesura encircled by one or two rows of small *** on these observations,we emended the diagnosis of this common *** spatio-temporal distribution of Coniopteris simplex shows that the iconic species was restricted to the paleolatitudes ranging from 19.5°N to 48.9°N in the Northern Hemisphere during the Early—Late Jurassic,mainly distributed in the tropical to paratropical zones,and the paleolongitude ranging from 9.6°E to 129.3°E,which may be limited by the opening of the Viking Corridor and the splitting of the Central Atlantic Ocean.