Journal of Micropalaeontology
Journal of Micropalaeontology
JM
Articles | Volume 45, issue 1
Articles | Volume 45, issue 1
https://doi.org/10.5194/jm-45-259-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-45-259-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 45, issue 1
Research article
 | 
13 Apr 2026
Research article |  | 13 Apr 2026

New material of Schizopholis (family Botsfordiidae) from the Tsinghsutung Formation (Cambrian Series 2, Stage 4) in Songtao County, Guizhou Province, South China

Buqing Wei, Xinglian Yang, Dezhi Wang, Weiyi Wu, and Yongqin Mao

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Short summary
Well-preserved fossils of Schizopholis were found in the Tsinghsutung Formation of Cambrian Series 2, Stage 4 in Songtao County, Guizhou Province by etching limestones with 3–5% acetic acid. This is the first systematic description of S. yorkensis from South China, and we extend its palaeobiogeographical distribution. Palaeobiogeographical analysis indicates that Schizopholis was predominantly distributed in low-latitude regions and reached its highest abundance/diversity level during the Cambrian Age 4.
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