Journal of Earth Science

, Volume 30, Issue 5, pp 1059–1074 | Cite as

Latest Wuchiapingian to Earliest Triassic Conodont Zones and δ13Ccarb Isotope Excursions from Deep-Water Sections in Western Hubei Province, South China

  • Bo Yang
  • Hanxiao Li
  • Paul B. Wignall
  • Haishui Jiang
  • Zhijun Niu
  • Qian Ye
  • Qiong Wu
  • Xulong LaiEmail author
Paleontology, Environmental Geology and Planetary Geology


Deep-water facies sections have advantages of recording complete information across the Permian-Triassic boundary (PTB). Here we present a detailed study on the conodont biostratigraphy and carbon isotope profile ranges from the Wuchiapingian-Changhsingian boundary (WCB) to the PTB of two deep-water facies sections at Zhuqiao and Shiligou in the Middle Yangtze region, western Hubei, South China. Fifteen species and three genera are identified. Eight conodont zones are recognized, in ascending order, they are the Clarkina orientalis, C. wangi, C. subcarinata, C. changxingensis, C. yini, C. meishanensis, Hindeodus parvus and Isarcicella isarcica zones. The onset of deposition of the deep-water siliceous strata of the Dalong Formation in western Hubei began in the Late Wuchiapingian and persisted to the Late Changhsingian. Carbon isotope negative excursions occur near both the WCB and PTB in both sections. The WCB δ13Ccarb negative excursion is in the C. orientalis and C. wangi zones. The PTB δ13Ccarb negative excursion began in the C. yini Zone and extended to the I. isarcica Zone. The absence of several Changhsingian zones may indicate the difficulty of extracting conodonts from siliceous strata or the presence of an intra-Changhsingian hiatus.

Key words

Dalong Formation conodonts δ13Ccarb isotope Wuchiapingian-Changhsingian boundary Permian-Triassic boundary 


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This work was supported by the Natural Science Foundation of China (Nos. 41572002, 41830320, 41272044, 41472087, 4183000426, 41802016). All thanks are due to Zaitian Zhang, Chunbo Yan, Rong Chen and Lina Wang for their help in field sampling. All SEM pictures were undertaken at the State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan). Finally, we thank the two anonymous reviewers for their constructive suggestions. The final publication is available at Springer via

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© China University of Geosciences (Wuhan) and Springer-Verlag GmbH Germany, Part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Earth SciencesChina University of GeosciencesWuhanChina
  2. 2.Wuhan Center of Geological SurveyWuhanChina
  3. 3.School of Earth & EnvironmentUniversity of LeedsLeedsUK
  4. 4.State Laboratory of Geobiology and Environmental GeologyChina University of GeosciencesWuhanChina
  5. 5.Non-ferrous Metals Geological Exploration Bureau of Zhejiang ProvinceShaoxingChina
  6. 6.State Laboratory of Paleontology and StratigraphyNanjing Institute of Geology and PaleontologyNanjingChina

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