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Science in China Series D: Earth Sciences

, Volume 51, Issue 2, pp 172–180 | Cite as

Microfossils from the siltstones and muddy slates: Constraint on the age of the Taowan Group in the Northern Qinling Orogenic Belt, Central China

  • Wang ZongQi Email author
  • Gao LianDa 
  • Wang Tao 
  • Jiang ChunFa 
Article

Abstract

The age of the Taowan Group is still a hot topic in the Northern Qinling Orogenic Belt, because of limited fossil evidence from these strata and different ideals on the Cambrian fossils of the conglomerate beds and limestone blocks. Early Ordovician acritarchs, chitinozoa and scolecodonts occur in the siltstone and muddy slate beds of the Guoling, Sanchakou, Fengmaimiao and Goushenmiao Formations of the Taowan Group, indicating the age of the Taowan Group should be the Ordovician. These fossil assemblages consist of 7 genera and 13 species of acritarchs, 7 genera and 9 species of chitinozoa, and 2 genera and 2 species of scolecodonts.

Keywords

Taowan Group microfossil Early Ordovician Northern Qinling Orogenic Belt 

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Copyright information

© Science in China Press 2008

Authors and Affiliations

  • Wang ZongQi 
    • 1
    Email author
  • Gao LianDa 
    • 1
  • Wang Tao 
    • 1
  • Jiang ChunFa 
    • 1
  1. 1.Institute of GeologyChinese Academy of Geological SciencesBeijingChina

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