学术论文

      Progress and significance in research on the early Middle Cambrian Kaili Biota, Guizhou Province,China

      Abstract:
      Important progress in research on the Kaili Biota has been made recently. Many interesting components from Chengjiang Biota and Burgess Shale Biota have been discovered, e.g. Microdictyon of lobopodia; Ottoia, Palaeoscolex of worms; Naraoia, Marrella of Trilobitioidea, Mollisonia, anamalocarids and other non-trilobite arthropods; and new sorts of echinoder-mas, macroalage fossils and so on. Recent work on the Kaili Biota has resulted in the following developments: (i) an increase in the number of animal genera, up to more than 100 genera in total, so that the Kaili Biota has become the third most diverse of the Burgess Shale-type Biota after the Burgess Shale and Chengjiang Biotas; and (ii) the most noteworthy fossils in the Kaili Biota are echinoderms, non-trilobite arthropods and soft-bodied medusiform fossils, especially the most diverse echinoderms. The progress provides envidence for the biodiversity of marine organisms presented after the "Cambrian Explosion" and serves as a link between the earlist Cambrian Chengjiang Biota and late early Middle Cambrian Burgess Shale Biota. It is of great significance in the reconstruction of the Cambrian palaeoplate, palaeongeography and in research on taphonomy.
      Author: ZHAO Yuanlong [1] YUAN Jinliang [2] ZHU Maoyan [2] YANG Ruidong [1] GUO Qingjun [3] Peng Jin [1] YANG Xinglian [1]
      作者单位: Institute of Paleontology and Biomineralization, School of Resource and Environment, Guizhou University of Technology, Guiyang 550003, China Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing 210008, China Guiyang Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550003, China
      年,卷(期): 2002, 12(9)
      分类号: Q91
      机标分类号: P5 TQ2
      在线出版日期: 2004年1月8日
      基金项目: 国家自然科学基金,the National Pandeng Project,the Guizhou Science and Technical Foundation and Governor Foundation of Guizhou Province