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April 12, 2026LifeOpen Access

First Occurrence of Wronascolex sp. (Palaeoscolecida, Priapulida) in the Cambrian Tianpeng Formation (Wuliuan Stage), Southeastern Yunnan, South China: Implications for a New Burgess Shale-Type Lagerstätte

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Authors

SXShang-Yun-Zhi XiaoLCLiurunxuan ChenSZShitao Zhang

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Overview

New palaeoscolecid worm reveals potential Burgess Shale-type preservation in southeastern Yunnan, suggesting ecological significance.

Key Points

  • The research aims to describe a new palaeoscolecid worm specimen and explore its implications for Lagerstätte preservation.
  • Discovered the specimen in the Bainiuchang area of southeastern Yunnan.
  • Conducted whole-rock geochemical analysis of fossil-bearing intervals.
  • Examined taphonomic features including carbonaceous compressions and iron-rich films.
  • Identified the specimen as Wronascolex sp., marking the first record of soft-bodied fossils from the Wuliuan Stage in the region.
  • Geochemical analysis suggested depositional conditions analogous to Burgess Shale-type deposits.
  • Extended the geographical range of Wronascolex to the southwestern South China Block.

Cite This Study

Xiao et al. (2026) studied this question.

synapsesocial.com/papers/69db38274fe01fead37c65fehttps://doi.org/10.3390/life16040640
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