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《地质学报(英文版)》 2016-06
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New Localities and Palaeoscolecid Worms from the Cambrian(Stage 4,Series 2) Guanshan Biota in Kunming,Yunnan,South China

LIU Jianni;HAN Jian;LI Jinshu;WU Yichen;PENG Jie;QI Nan;YANG Yiyao;LI Juan;Early Life Institute,State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University;  
The Guanshan Biota from the Cambrian Stage 4 Wulongqing Formation is a typical Burgess-shale type Lagerst?tte that had witnessed the Cambrian explosion. Here we report two new localities of the Guanshan Biota,which is located at Baimei village,south of Kunming and Xinglong village,Wuding County,Yunnan Province respectively. Both localities produce soft-body fossils and several new taxa,e.g. a new species of palaeoscolecidans(Palaeoscolex xinglongensis sp. nov.) reported herein. The comparative study of the new species with similar form not only indicates that there is a diversification of palaeoscolecid species in Guanshan Biota,but also strengthens the ties between the older Chengjiang Biota and the younger Kaili Biota(and also the coeval Burgess Shale community). Three paleoecological features,including high diversity,little disparity and richness of palaeoscolecid worms,are summarized as a case study to represent the differences between Guanshan and Chengjiang Biota.
【Key Words】: Guanshan Biota Chengjiang Biota palaeoscolecid worms Cambrian Explosion China
【Fund】: financially supported by the 973 Project of the Ministry of Science and Technology of China(Grant 2013CB837100);; the National Natural Science Foundation of China(Grant 41222014 41172023 41621003 41102012);; the National Program for Support of Top-notch Young Professionals;; financial support from the Ministry of Education of China for Changjiang Scholar;; the Program of Introducing Talents of Discipline to Universities(P201102007 W20136100061);; Shaanxi Bureau of Science and Technology(FJ11366);; Young Talents of Northwest University
【CateGory Index】: Q915
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