二叠系乐平统疑似罩笼虫(放射虫)在华南广西地区的发现及其演化意义  

TENTATIVE NASSELLARIA(RADIOLARIA)REPORTED FROM THE LOPINGIAN(PERMIAN)OF GUANGXI,SOUTH CHINA AND ITS EVOLUTIONARY SIGNIFICANCE

作　　者：张磊[1,2,3] 吴俊 常珊 MARIE Béatrice Forel 王夏 ITO Tsuyoshi 冯庆来 何卫红[9] 刘倩 李星霖 TANIEL Danelian ZHANG Lei;WU Jun;CHANG Shan;MARIE Béatrice Forel;WANG Xia;ITO Tsuyoshi;FENG Qinglai;HE Weihong;LIU Qian;LI Xinglin;TANIEL Danelian(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu 610059,China;Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China;Key Laboratory of Sedimentary Basin and Oil and Gas Resources,Ministry of Natural Resources,Chengdu 610o81,China;Wuhan Center of China Geological Survey(Central South China Innovation Center for Geosciences),Wuhan 430205,China;Hubei Key Laboratory of Paleontology and Geological Environment Evolution,Wuhan 430205,China;College of Urban and Environmental Sciences,Hubei Normal University,Wuhan 430205,China;Centre de Recherche en Paléontologie–Paris,UMR7207,MNHN-CNRS-Sorbonne Université,Museum National d'Histoire Naturelle,Paris 75005,France;Research Institute of Geology and Geoinformation,Geological Survey of Japan,Tsukuba,Ibaraki 305-8567,Japan;Department of Earth Sciences,China University of Geosciences(Wuhan),Wuhan 430074,China;UniversitéLille,CNRS,Lille F-59000,France)

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,成都610059 [2]成都理工大学沉积地质研究院,成都610059 [3]自然资源部沉积盆地与油气资源重点实验室,成都610081 [4]中国地质调查局武汉地质调查中心(中南地质科技创新中心),武汉430205 [5]古生物与地质环境演化湖北省重点实验室,武汉430205 [6]湖北师范大学城市与环境学院,黄石435002 [7]Centre de Recherche en Paléontologie–Paris,UMR7207,MNHN-CNRS-Sorbonne Université,Muséum National d'Histoire Naturelle,75005 Paris,France [8]Research Institute of Geology and Geoinformation,Geological Survey of Japan,Tsukuba,Ibaraki 305-8567,Japan [9]地球科学学院,中国地质大学(武汉),武汉430074 [10]UniversitéLille,CNRS,F-59000 Lille,France

出　　处：《微体古生物学报》2022年第4期316-327,共12页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金项目(No.42102143);自然资源部沉积盆地与油气资源重点实验室开放基金(No.cdcgs202203)。

摘　　要：由于二叠纪罩笼虫化石材料极度稀缺,我们对罩笼虫从古生代向中生代类型演化的过程仍然一无所知。本文在广西晚二叠世大隆组与领薅组中报道了少量疑似罩笼虫化石。它们的形态简单,与三叠纪的罩笼虫属Bipedis形态相似,但缺少外饰,可能是中生代罩笼虫的先驱分子。如果本文描述的这些?Bipedis化石真属于罩笼虫目,那么该目从石炭纪晚期到二叠纪的演化可能经历了一段形态简化的阶段;在早三叠世,伴随其辐射过程,它们的形态也开始逐渐变得复杂。这些化石形态上介于古生代和中生代的罩笼虫之间,它们在吴家坪阶-长兴阶界线附近的出现可能是二叠-三叠纪之交深水放射虫由阿尔拜虫向罩笼虫动物群转变的序曲。Our current knowledge of biostratigraphic,phylogenetic,and ecologic characters of Nassellarian radiolarians at the Paleozoic-Mesozoic transition interval is limited,owing to their extreme scarcity in the Permian strata.This study recovered a few tentative Nassellarians specimens from the Upper Permian Dalong and Linghao formations in Guangxi,South China.Three morphologies are described,namely?Bipedis sp.A,?Bipedis sp.B and?Bipedis sp.C.These specimens have a simple morphology,resemble the Triassic Bipedis,and could be the forerunners of some Mesozoic Nassellarians.Their morphology may also be superficially related to some Carboniferous-type Nassellarians such as Archocyrtiidae,although this link is much less obvious.Although these extremely rare specimens are not perfectly preserved,the occurrences of these tentative Nessellarians have provided the valuable information for the possible existence of the Permian Nessellarians.These simple form specimens have bridged the Paleozoic and Mesozoic forms.It might indicate the evolution of at least one Nessellarians branch has experienced a simplification process during the Permian and restarted to increase its complexity during their radiation in the Early Triassic oceans.

关 键 词：放射虫 罩笼虫 先驱分子 二叠纪 三叠纪 

分 类 号：Q915[天文地球—古生物学与地层学]