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南澳大利亚沃伯顿盆地Gidgealpa一号钻孔寒武系(鼓山阶)的三叶虫(英文)

CAMBRIAN(DRUMIAN)TRILOBITES FROM THE GIDGEALPA 1 DRILLHOLE,WARBURTON BASIN,SOUTH AUSTRALIA

【Author in Chinese】 孙晓文杰戈 詹姆斯B本特利 克里斯托弗J

【Author】 SUN Xiao-wen;JAGO James B;BENTLEY Christopher J;State Key Laboratory of Palaeobiology and Stratigraphy(LPS),Nanjing Institute of Geology and Palaeontology;Barbara Hardy Institute,School of Natural and Built Environments,University of South Australia;

【Institution】 现代古生物学与地层学国家重点实验室(LPS),中国科学院南京地质古生物研究所Barbara Hardy Institute,School of Natural and Built Environments,University of South Australia

【Abstract in Chinese】 描述采自南澳东北部全地下沃伯顿盆地的Gidgealpa一号钻孔23号岩芯的寒武系第三统碳酸盐前缘斜坡相动物群,有11个球接子类群,包括新种Raragnostus shergoldi sp.nov.,和14个多节类三叶虫群,包括新种Dorypyge gidgealpaensis sp.nov.,Amphoton zangi sp.nov.,Solenoparia gatehousei sp.nov.和Lisania changi sp.nov.。在澳大利亚北部生物地层范围内,这一动物群隶属Undillan(Ptychagnostus punctuosus带,Doryagnostus deltoides带和Goniagnostus nathorsti带),并且可与江南斜坡带的P.punctuosus带和G.nathorsti带对比。

【Abstract】 A Cambrian Series 3(Drumian)fauna is described from Core 23 of the Gidgealpa 1drillhole from the entirely subsurface Warburton Basin,northeastern South Australia.Eleven agnostoid taxa are described,including the new species Raragnostus shergoldi sp.nov.Fourteen polymerid trilobite taxa are described,including the new species Dorypyge gidgealpaensis sp.nov.,Amphoton zangi sp.nov.,Solenoparia gatehousei sp.nov.and Lisania changi sp.nov.On the northern Australian biostratigraphic scale this fauna falls within the Undillan(Ptychagnostus punctuosus,Doryagnostus deltoides and Goniagnostus nathorsti Zones)and correlates within the P.punctuosus and G.nathorsti Zones of the Jiangnan slope belt of South China.These are the first published descriptions of the Drumian trilobites from the Warburton Basin and represent the best preserved and diverse fossil assemblage from the basin.

  • 【CLC code】Q915
  • 【Downloads】55
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