Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2023, Vol. 59 ›› Issue (3): 427-433.DOI: 10.13209/j.0479-8023.2023.016

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Study of the Spherical Fossils from the Ediacaran-Cambrian Liuchapo Formation in Guizhou, China

LIU Hui, DONG Lin   

  1. Key Laboratory of Orogenic Belts and Crustal Evolution (MOE), School of Earth and Space Sciences, Peking University, Beijing 100871
  • Received:2022-05-02 Revised:2022-05-17 Online:2023-05-20 Published:2023-05-20
  • Contact: DONG Lin, E-mail: lin.dong(at)


刘晖, 董琳   

  1. 造山带与地壳演化教育部重点实验室, 北京大学地球与空间科学学院, 北京 100871
  • 通讯作者: 董琳, E-mail: lin.dong(at)
  • 基金资助:


Microfossils from cherts of the Liuchapo Formation at Bahuang section in eastern Guizhou Province were studied. Through thin section observation, a large number of spherical fossils were revealed, including one type with connected spheroids, and two types with dark outer wall. The former is systematically described, and a new genus Bahuangia gen. nov. is established. The connected bodies of Bahuangia are calabash- or chain-shaped, and resemble the budding unicellular fungi or bacteria in morphology. Spherical fossils similar to these Bahuang specimens are widely distributed in the late Ediacaran deep-water facies of the Yangtze Plate. Through this study, the understanding of deep-water life forms during the ECT is improved, and new materials for both regional stratigraphic correlation and early life evolution are provided.

Key words: spherical fossils, cherts, Liuchapo Formation, Guizhou


对贵州省东部坝黄剖面留茶坡组硅质岩中的微体化石进行研究。通过薄片观察, 发现多种球形化石, 包括一类具连接体的球形化石以及两种具深色外壁的球形化石。对具连接体的球形化石进行系统的描述, 并建立新属Bahuangia gen. nov.。Bahuangia的连接体呈葫芦状或链状, 形态可与出芽生殖的单细胞真菌或细菌进行类比。所报道的3类球形化石在扬子板块埃迪卡拉纪晚期的深水相地层中广泛分布, 此次发现加深了对埃迪卡拉纪晚期深水区生物面貌的认识, 可为区域地层对比以及地球早期生命演化的研究提供新的材料。 

关键词: 球形化石, 硅质岩, 留茶坡组, 贵州