ORDOVICIAN BRYOZOAN DIVERSITY CHANGES AND BEARING ON THE ORIGIN OF BRYOZOA
XIA Feng-sheng~ 1);MA Jun-ye~ 1)and HAO Jia-sheng~ 2)1)State Key Laboratory of Palaeobiology and Stratigraphy;Nanjing Institute of Geology and Palaeontology;Chinese Academy of Sciences;Nanjing 210008;China;2)College of the Life Sciences;Anhui Normal University;Wuhu 241000;China
PRELIMINARY TAPHONOMIC ANALYSES OF THE EARLY CAMBRIAN NIUTITANG BIOTA NEAR SONGLIN,ZUNYI,GUIZHOU
CUI Tao~ 1);YANG Xing-lian~ 1;2)and ZHAO Yuan-long~ 1)1)College of Resource and Environment Engineering;Guizhou University;Guiyang 550003;China;2)State Key Laboratory of Paleobiology and Stratigraphy;Nanjing Institute of Geology and Palaeontology;Chinese Academy of Sciences;Nanjing 210008;China