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A preliminary note on the dispersal of the Cambrian Burgess Shale-type faunas

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
14
Identifiers
DOI: 10.1016/j.gr.2007.09.001
Keywords
  • Tommotian-Atdabanian
  • Burgess Shale-Type Faunas
  • Lagerstätten
  • Larvae
  • Dispersal
Disciplines
  • Biology

Abstract

Abstract The common or similar elements of faunas shared by the Early Cambrian Chengjiang fauna and the Middle Cambrian Burgess Shale fauna are listed in a generic level so as to have a better understanding of the palaeogeographic relationship between the South China Block and Laurentia. The Burgess Shale-type faunas probably had a worldwide distribution during the interval ranging from the Late Tommotian to Atdabanian. The geographic and biological contributions to the cosmopolitan geographic distribution of the Burgess Shale-type faunas are discussed. However, newly developed pelagic larvae in many phyla, which probably acquired their first bloom in the Cambrian, might have promoted the dispersal.

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