| 四川江油渔洞子剖面下三叠统飞仙关组底部龙介类的古生态意义 |
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| 作者单位： | ;1.中国科学院南京地质古生物研究所;2.Fachbereich Geowissenschaften;3.Universitat Bremen |
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| 摘 要： | 三叠系龙介类化石在欧洲早有报道。在我国四川江油渔洞子剖面下三叠统飞仙关组底部牙形刺Hindeodus pavus带微生物岩中首次发现环节动物龙介类化石Spirorbisphlyctaena,与以蓝菌为主的自养型底栖微生物群落共生,是早三叠世生物复苏的先驱者。
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| 关 键 词： | 龙介科 微生物岩 早三叠世 飞仙关组 渔洞子剖面 江油 四川 |
DISCOVERY OF THE SERPULID SPIRORBIS FROM THE BOTTOM OF THE LOWER TRIASSIC FEIXIANGUAN FORMATION,YUDONGZI SECTION OF JIANGYOU,SICHUAN PROVINCE,CHINA AND ITS PALAEOECOLOGIC SIGNIFICANCES |
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| Institution: | ,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Fachbereich Geowissenschaften,Universitat |
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| Abstract: | This paper reports the first discovery of Spirorbis phlyctaenain China which was found in the microbialite at the bottom of the Lower Triassic Feixianguan Formation(Greisbachian)of the Yudongzi Section of Jiangyou,Sichuan Province.It offers information about the composition,structure and paleoecology of the Early Triassic biologic community associated with the benthic microbial community.The occurrence of serpulid spirorbis belonging to annelida in the zone of conodont Hindeodus parvus further inplies that annelida is one of pioneers of Early Triassic biologic recovery.In comparison with S.phlyctaenafound in Siusi Member of the Werfen Formation from northern Italy,the S.phlyctaenaat the bottom of the Lower Triassic Feixianguan Formation is nearly same in size.The Lilliput efficiency happens in brachiopod Lingunellabut not in ser pulid spirorbis. |
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| Keywords: | serpulidae benthic microbial community microbialite Early Triassic Greisbachian Feixianguan Formation Yudongzi Section Jiangyou Sichuan China |
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