新疆北部密西西比亚纪早期无鳞板的单体珊瑚  

EARLY MISSISSIPPIAN NON-DISSEPIMENTED SOLITARY RUGOSE CORALS FROM NORTHERN XINJIANG

作　　者：廖卫华[1] 梁昆 罗正江 LIAO Wei-hua;LIANG Kun;LUO Zheng-jiang(Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 210008,China;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing 210008,China;Petrochina Xinjiang Oilfield Company Research Institute of Experiment and Detection,Karamay 834000,Xinjiang,China;The Nanjing Institute of Geology and Palaeontology,CAS-Petrochina Xinjiang Oilfield Company Joint Laborato-ry of Stratigraphy and Paleontology,Nanjing 210008,China)

机构地区：[1]中国科学院南京地质古生物研究所,南京210008 [2]现代古生物学和地层学国家重点实验室,南京210008 [3]中国石油新疆油田分公司实验检测研究院,新疆克拉玛依834000 [4]中国科学院南京地质古生物研究所-中国石油新疆油田公司地层古生物联合实验室,南京210008

出　　处：《古生物学报》2020年第3期318-328,共11页Acta Palaeontologica Sinica

基　　金：江苏省自然科学基金(BK20171102);中国科学院战略性先导科技专项(XDB26000000)联合资助。

摘　　要：新疆北部准噶尔盆地东缘巴里坤、西缘托里与西北缘和布克赛尔等地的密西西比亚纪早期地层为一套较深水相的黑色页岩与生物屑泥晶灰岩,产浮游生活的菊石、牙形类和营底栖固着生活的腕足类、腹足类、双壳类、苔藓虫、无鳞板的单体珊瑚以及孢子等化石。根据鉴定,该地层时代应属于密西西比亚纪(或称早石炭世)早期,相当于国际地层表中的杜内阶(Tournaisian)。产出珊瑚分别为:Amplexus gennarenensis sp.nov.,Cyathaxonia stereoseptata,Hapsiphyllumcrissum,Meniscophyllumirregulare,Rotiphyllumxinjiangensesp.nov.,Zaphrentites parallelus(Carruthers),Neozaphrentis sp.,fam.gen.et sp.indet.。The Early Mississippian strata in Barkol that is located in the east margins of the Junggar Basin,and Toli and Hoboksar counties that are located in the west margins of the Basin,north Xinjiang are characterized by the occurrences of relatively deep-water black shale and bioclastic micrite limestone,yielding abundant pelagic ammonoids,conodonts and benthic brachiopods,bryozoans,gastropods,bivalves,tabulate corals,non-dissepimented solitary rugose corals,and spores,etc.According to the assemblages of ammonoids and conodonts,the strata is undoubtedly of Early Mississippian in age,within the Tournaisian Stage of the international chronostratigraphic chart.The rugose corals from four different Early Mississippian outcrops of north Xinjiang are investigated in this study,and they belong to eight species of eight different genera,including two new species and an undetermined genus and species.

关 键 词：新疆北部 准噶尔盆地 密西西比亚纪早期 单体珊瑚 

分 类 号：Q915.2[天文地球—古生物学与地层学]