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STRATI 2013 pp 25-27 | Cite as

Size Variation of Conodonts During the Smithian–Spathian (Early Triassic) Global Warming Event

  • Yanlong ChenEmail author
  • Richard J. Twitchett
  • Haishui Jiang
  • Sylvain Richoz
  • Xulong Lai
  • Chunbo Yan
  • Yadong Sun
  • Xiaodan Liu
  • Lina Wang
Conference paper
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

The Early Triassic Smithian–Spathian Boundary (SSB) crisis coincided with an episode of extreme warmth. A high-resolution stratigraphic framework comprising six conodont zones is provided in the Jiarong section, Nanpanjiang Basin, in South China. Detailed size measurements of 441 conodont elements of the closely related genera Neospathodus, Triassospathodus, and Novispathodus show for the first time that this clade suffered a temporary, but significant, size reduction during the SSB crisis. The size reduction of conodonts was probably caused by an episode of global warming.

Keywords

Conodont Size variation Early Triassic Extinction South China 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Yanlong Chen
    • 1
    • 2
    Email author
  • Richard J. Twitchett
    • 3
  • Haishui Jiang
    • 2
  • Sylvain Richoz
    • 4
  • Xulong Lai
    • 2
  • Chunbo Yan
    • 2
  • Yadong Sun
    • 2
  • Xiaodan Liu
    • 2
  • Lina Wang
    • 2
  1. 1.Institute of Earth Sciences, University of GrazGrazAustria
  2. 2.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan)WuhanChina
  3. 3.School of Geography, Earth and Environmental Sciences, University of PlymouthPlymouthUK
  4. 4.Austrian Academy of Sciences c/o Institute of Earth Sciences, University of GrazGrazAustria

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