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时间:2020-03-26
《贵州金沙长岩沟寒武系牛蹄塘组生物群组成特征.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第32卷第5期地质通报V01.32.No.52013年5月GEoLoGICALBULLETINOFCHINAMaY,2013贵州金沙长岩沟寒武系牛蹄塘组生物群组成特征王平丽,赵元龙,李增学,杨兴莲,伍孟银,张培兴WANGPing—li,ZHAOYuan—long2,LIZeng—xue,YANGXing—lian,WUMeng—yin.ZHANGPei—xing21.山东省沉积成矿作用与沉积矿产重点实验室/山东科技大学地质科学与工程学院,山东青岛266590;2.贵州大学资源与环境工程学院,贵州贵阳550003;3.
2、贵阳学院政教系,贵州贵阳5500051.ShandongProvincialKeyLaboratoryofDepositionalMineralization&SedimentaryMinerals;CollegeofGeologicalSciences&Engineering,ShandongUniversityofScienceandTechnology,Qingdao266590,Shangdong,China;2.CollegeofResourceandEnvironment,GuizhouUniversit
3、y,Guiyang550003,Guizhou,China,"3.DepartmentofPoliticalEducation,GuiyongCollege,Guiyang550005,Guizhou,China摘要:贵州金沙长岩沟牛蹄塘组生物群化石丰富,共计25属,以海绵动物为主,另有节肢动物及藻类两大门类化石代表。海绵动物以普通海绵为主,计8属,占整个海绵动物属的57%;六射海绵5属,占海绵的36%,另有纲、目及科未定1属。节肢动物8属中高肌虫占优势,计有5属;大型双壳节肢动物2属,三叶虫仅1属。藻类共计3属。与
4、遵义牛蹄塘生物群相比.两地均以普通海绵为主.金沙长岩沟牛蹄塘生物群海绵更为丰富.与遵义黑沙坡的海绵组成有差异。金沙长岩沟节肢动物中三叶虫少,仅1属,但高肌虫丰富,达5属,而遵义黑沙坡只有2属高肌虫,三叶虫则达4属。遵义和金沙牛蹄塘组生物群分别有藻类属4个和3个,共有属2个。两地同一生物群组成的差异,说明同处扬子浅水区的金沙长岩沟及遵义黑沙坡沉积环境可能有所差异,因而组成面貌也有差异两地牛蹄塘生物群均具有显著的澄江生物群色彩关键词:贵州;金沙;长岩沟;遵义;黑沙坡;牛蹄塘组生物群;海绵中图分类号:P53441文献标志码
5、:A文章编号:1671—2552(2013)05—760—07WangPL,ZhaoYL,LiZX,YangXL,WuMY,ZhangPX.FeaturesoftheCambrianNiutitangBiotafromChangyan-gouVillage,JinshaCounty,GuizhouProvince.GeologicalBuHeanofChina,2013,32(5):760-766Abstract:TheNiutitangBiotainChangyangouVillage,JinshaCounty,j
6、ustasinHeishapoViHage,ZunyiCountywherethebiotawasnamed,hasabundantfossilswhichinclude25genera,belonNngtoSponges,ArthropodaandAlgae.AmongSponges,theDemo—spongeahas8generawhichareLeptomitus,LeptomiteUa,Paraleptomitella,Takakkawia,Crumillospongia,Choia,ChoiaeUaand
7、Allan—tospongia,accountingfor57%ofSponges;theHexactinellidahas5generawhichareKunmingella,Emeiella,Hanchiangella,Tsun—yiellaandSonglinella,accountingfor36%;thegenusSolactiniellaMehlandR.eimer,1993isgen.etsp.indet.Thereare8generainArthropoda,dominatedbyBradoriida
8、with5generawhichareKunmingella,Emeiella,Hanchiangella,TsunyiellaandSonglinella;2generaoflargebivalvedarthropodanimalsarekoxysandPerspicaris;1genusofTrilobitaisTsunyidiscus,t
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