Articles | Volume 45, issue 1
https://doi.org/10.5194/jm-45-259-2026
https://doi.org/10.5194/jm-45-259-2026
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

Cited articles

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Betts, M. J., Paterson, J. R., Jago, J. B., Jacquet, S. M., Skovsted, C. B., Topper, T. P., and Brock, G. A.: Global correlation of the early Cambrian of South Australia: Shelly fauna of the Dailyatia odyssei Zone, Gondwana Research, 46, 240–279, https://doi.org/10.1016/j.gr.2017.02.007, 2017. 
Betts, M. J., Claybourn, T. M., Brock, G. A., Jago, J. B., Skovsted, C. B., and Paterson, J. R.: Shelly fossils from the lower Cambrian White Point Conglomerate, Kangaroo Island, South Australia, Acta Palaeontologica Polonica, 64, 489–522, https://doi.org/10.4202/app.00586.2018, 2019. 
Brock, G. A. and Cooper, B. J.: Shelly Fossils from the Early Cambrian (Toyonian) Wirrealpa, Aroona Creek, and Ramsay Limestones of South Australia, Journal of Paleontology, 67, 758–787, https://doi.org/10.1017/S0022336000037045, 1993. 
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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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