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

doi:10.13209/j.0479-8023.2023.016

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^†

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)pku.edu.cn

贵州埃迪卡拉系–寒武系留茶坡组中球形化石的研究

刘晖, 董琳^†

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)pku.edu.cn
基金资助:
国家自然科学基金(41402025)、中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室基金(133103)资助

Abstract

Abstract:

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

摘要：

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

LIU Hui, DONG Lin. Study of the Spherical Fossils from the Ediacaran-Cambrian Liuchapo Formation in Guizhou, China[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2023, 59(3): 427-433.

刘晖, 董琳. 贵州埃迪卡拉系–寒武系留茶坡组中球形化石的研究[J]. 北京大学学报自然科学版, 2023, 59(3): 427-433.

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URL: https://xbna.pku.edu.cn/EN/10.13209/j.0479-8023.2023.016

https://xbna.pku.edu.cn/EN/Y2023/V59/I3/427

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

贵州埃迪卡拉系–寒武系留茶坡组中球形化石的研究

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