New Benthic Fossils from the Late Ediacaran Strata of Southwestern China

作     者：LIU Junping LI Ming TANG Feng ZHAO Jiangtai SONG Sicun ZHOU Ying SONG Xiaohan REN Liudong LIU Junping;LI Ming;TANG Feng;ZHAO Jiangtai;SONG Sicun;ZHOU Ying;SONG Xiaohan;REN Liudong

作者机构：School of Earth Science and ResourcesChina University of GeosciencesBeijing 10083China Yunnan Institute of Geological SurveyKunming 650216China Chinese Academy of Geological SciencesBeijing 10037China Key Laboratory for Stratigraphy and PaleontologyMNRCBeijing 10037China School of Earth Science and EngineeringNanjing UniversityNanjing 210093China Department of Earth SciencesUniversity College LondonLondon WC1E 6BTU.K. CAS and Shandong Province Key Laboratory of Experimental Marine BiologyCenter for Ocean Mega-ScienceInstitute of OceanologyChinese Academy of SciencesQingdaoShandong 266071China Institute of GeologyChinese Academy of Geological SciencesBeijing 10037China 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2024年第98卷第2期

页      面：311-323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] 0708[理学-地球物理学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.42172035,42062005 and 41572024) the China Geological Survey(Grant No.DD20221648) Yunnan Province Science and Technology Department(Grant No.202305AD160031,202401AT070012) the project entitled 1:50000 Regional Geological Survey of Dazhuang,Fabiao,Ditu,and Dianzhong Sheets in Yunnan Province(Grant No.D202207) 

主　　题：paleophytology benthic saccular algae algal evolution Neoproterozoic Jiucheng Member Jiangchuan Biota Yunnan Province 

摘      要：The Jiangchuan Biota from the Jiucheng Member(Mb.)of the Dengying Formation(Fm.),discovered in Jiangchuan,eastern Yunnan,China,is marked by copious macrofossils at the apex of the Ediacaran *** fauna features benthic algae with varied holdfasts and other fossils of indeterminate taxonomic affinity and is compositionally unique compared to the Shibantan and Gaojiashan biotas of the Dengying *** the Miaohe and Wenghui biotas of the Doushantuo Fm.,elsewhere in *** novel benthic saccular macroalgal fossil,named here Houjiashania yuxiensis *** ***.,from the Jiangchuan Biota is based on fossils that are sausage-shaped,elongate,tubular,ranging from 0.3 to 4 cm in length,and up to 0.8 cm in *** terminus is blunt and rounded to an obtuse angle,the other is bent with a spread-out surface resembling a holdfast,suggesting a three-dimensional ***,stipe-shaped outgrowths,likely vestiges of sessile saccular life forms,are prevalent in macroalgal fossils of analogous size and shape,as well as present brown algae Scytosiphonaceae,such as Colpomenia and *** new findings augment the diversity of benthic algae,such as those known from the Early Neoproterozoic Longfengshan Biota in North *** benthic algal macrofossils in the Jiucheng *** to knowledge of Late Ediacaran metaphyte diversification and offer more clues about the evolutionary positioning of primitive *** co-occurrence of numerous planktonic and benthic multicellular algae and planktonic microbes might have facilitated ecologically the more extensive later Cambrian explosion evidenced by the Chengjiang Biota in Yunnan.