贵州金沙岩孔寒武纪牛蹄塘组宏观藻类化石的发现  

MACROALGAL FOSSILS DISCOVERED FROM THE CAMBRIAN NIUTITANG FORMATION,JINSHA,GUIZHOU PROVINCE,SW CHINA

作　　者：傅晓平[1] 伍孟银[2] 赵元龙[3] 刘兴尧[1] 王平丽[4] 杨兴莲[3] 

机构地区：[1]深圳仙湖植物园,深圳518004 [2]贵阳学院经管学院,贵阳550005 [3]贵州大学资源与环境工程学院古生物及生物成矿研究所,贵阳550003 [4]山东科技大学地质科学与工程学院,青岛266510

出　　处：《微体古生物学报》2014年第2期205-211,I0001,共8页Acta Micropalaeontologica Sinica

基　　金：国家重点基础研究规划项目(2013CB835002);贵州省科技基金项目(黔科合J字[2012]2018);国家自然科学基金(40672018;40902003;41172005);贵州省国际科技合作项目(黔科合外G字[2010]7001);贵州省省长基金(黔省专合[2011]37);深圳市仙湖植物园基金联合资助

摘　　要：本文描述了贵州金沙岩孔镇长岩沟下寒武统(纽芬兰统—寒武系第2统)牛蹄塘组底部黑色页岩中呈碳质薄膜保存的宏观藻类化石,共3属3种:美丽遵义藻Zunyiphyton pereleganus Yang et Zhao,1999,云南中华细丝藻Sinocylindra yunnanensis Chen et Erdtmann,1991,文德带藻(未定种)Vendotaenia sp.。该组合中主要分子是Zunyiphyton pereleganus和Vendotaenia sp.,它们也是遵义牛蹄塘组宏观藻类组合中最主要的分子。而遵义牛蹄塘组宏观藻类组合的另一特征分子贵州约克那斯藻Yuknessis guizhouensis及底栖固着型藻束状陡山沱藻Doushantuophyton comet在金沙岩孔牛蹄塘组宏观藻类化石组合中未见,说明产于浅水台地的牛蹄塘生物群宏观藻类组合既具有广泛的一致性也具有一定的差异性。This paper describes the new occurrence of macroalgae from the black shale facies in the lower part of the Niutitang Formation （Cambrian, upper Diandongian to lower Qiandongian）, Jinsha County, Guizhou Province, China. The flora, preserved as carbonized compressions, comprises Zunyiphyton pereleganus Yang et Zhao, 1999, Sinocylindra yunnanensis Chen and Erdtmann, 1991, and Vendotaenia sp.. This is the first report of macroalgae from the Niutitang Formation from the locality outside Zunyi Country. Taxonomically, the new occurrence is broadly simi- lar to the flora described from the equivalent part of the Niutitang Formation in Zunyi County, but it lacks Yuknessia guizhouensis Yang et Zhao, 1999 and Doushantuophyton. The reason for this taxonomic difference remains unclear, but it may reflect differences in water depth across the shallow-water platform during this timeframe.

关 键 词：宏观藻类 牛蹄塘组 下寒武统 金沙 贵州 

分 类 号：Q914.2[天文地球—古生物学与地层学]