古地理学报2011，Vol.13Issue(3)：299-308,10.
湖北武汉下志留统坟头组化石组合及沉积环境
Fossil association and sedimentary environments of the Lower Silurian Fentou Formation in Wuhan, Hubei Province
摘要
Abstract
The paper reports a new section of the Lower Silurian Fentou Formation which has been measured in Tiejishan Hill. This well-exposed section situates in the southeast of Wuhan, Hubei Province, just five kilometers from the downtown of Wuhan. Abundant fossils have been collected from this site, they were identified as 13 genera with 17 species in total, including trilobites, brachiopods,bivalves, gastropods, rostroconcha and piscis. Some of the species such as Coronocephalus wuningensis,C. gaoluoensis, Kailia intersulcata, Latiproetus sp., Striispirifer shiqianensis, Striispirifer disparatus,Howellella sp., Nucleospira calypta are common in the Fentou Formation of Jiangsu and Anhui Provinces,the Shamao Formation of west of Hubei Province and the Xiushan Formation in southwest China;Technophorus peregriuns has been reported from the upper part of the Xiushan Formation in Guizhou Province before, and also from both of the Wangjiawan Formation and Ningqiang Formation of Shaanxi Province. Orthonota perlata occurs frequently in the Fentou Formation in the Lower Yangtze River region.Based on biostratigraphic correlation, fossil assemblage from the Fentou Formation in Wuhan area belongs to the Early Silurian (Telychian, Llandovery ). The lower part of the Fentou Formation might be deposited in a foreshore setting with a high energy, and the middle-upper part of this formation might be formed in an inshore and offshore setting with a lower energy. At last, the authors propose to cancel the stratigraphic unit of the Guodingshan Fomation in Wuhan area.关键词
下志留统/坟头组/化石组合/武汉/沉积环境Key words
Lower Silurian/ Fentou Formation/ fossil association/ Wuhan/ sedimentary environment分类
生物科学引用本文复制引用
纵瑞文,刘琦,龚一鸣..湖北武汉下志留统坟头组化石组合及沉积环境[J].古地理学报,2011,13(3):299-308,10.基金项目
国家自然科学基金项目(批准号:40872001,41072252,40921062)和国家地质学理科基地人才培养基金项目(编号:J0830520)联合资助 （批准号:40872001,41072252,40921062）
