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  

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

作　　者：周志澄[1] 许波[1] 罗辉[1] WILLEMS H 蔡华伟[1] 陈金华[1] 陈迪舒[1] 王学恒[1] 刘实佳 

机构地区：[1]中国科学院南京地质古生物研究所,南京210008 [2]Fachbereich Geowissenschaften,Universitat Bremen

出　　处：《微体古生物学报》2015年第4期403-410,共8页Acta Micropalaeontologica Sinica

基　　金：中国科学院战略性先导科技专项(B类)(Grant No.XDB03010102);中国科学院"外国专家特聘研究员"计划项目(项目编号:2009Z2-7);国家自然科学基金青年基金(41402016);国家自然科学基金(41072008;41172010);德国研究委员会课题(Wi725/26)联合资助~~

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。This paper reports the first discovery of Spirorbis phlyctaena in China which was found in the microbialite at the bottom of the Lower Triassic Feixianguan Formation（Greisbachian） of the Yudongzi Section of Jiangyou, Si- chuan 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 in- plies that annelida is one of pioneers of Early Triassic biologic recovery. In comparison with S. phlyctaena found in Siusi Member of the Werfen Formation from northern Italy, the S. phlyctaena at the bottom of the Lower Triassic Feixianguan Formation is nearly same in size. The Lilliput efficiency happens in brachiopod Lingunella but not in ser pulid spirorbis.

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 

分 类 号：Q915.5[天文地球—古生物学与地层学]