Articles | Volume 45, issue 1
https://doi.org/10.5194/jm-45-73-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-45-73-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Jan 2026
Research article |
| 26 Jan 2026
| 26 Jan 2026
Early–Middle Ordovician chitinozoans from the Dawan Formation, Yichang area, Central China
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China
Shouhan Wu
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China
University of Chinese Academy of Sciences, Beijing, 100049, China
Xiaocong Luan
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China
Renbin Zhan
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China
University of Chinese Academy of Sciences, Beijing, 100049, China
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Short summary
A study on Ordovician chitinozoans from South China was conducted. A total of 13 genera and 31 taxa are recognised, including 3 new taxa. Systematic and biostratigraphic remarks are provided for key or disputed taxa to foster our understanding of their classification and biostratigraphy. Furthermore, network analysis is applied for the first time to assess their palaeoenvironmental significance, yielding positive results that highlight a promising new research direction in chitinozoan studies.
A study on Ordovician chitinozoans from South China was conducted. A total of 13 genera and 31...
