Diverse multicellular algae from the early Ediacaran Doushantuo chert nodules and their palaeoecological implications
Diverse multicellular algae from the early Ediacaran Doushantuo chert nodules and their palaeoecological implications
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早期埃迪卡拉纪陡山沱燧石结核中的多种多细胞藻类及其古生态学意义
DOI：
10.1016/j.precamres.2021.106508
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发表时间：
2022
影响因子：
3.8
通讯作者：
Pengju Liu
中科院分区：
文献类型：
--
作者：
Xiaodong Shang;Pengju Liu
在中国南方长江三峡地区早期埃迪卡拉纪陡山沱组二段的燧石结核中发现了形态多样的多细胞藻类，并保留了解剖细节。它们在分类学上被鉴定为Archaeophycus yunnanensis、Sarcinophycus papilloformis、Thallophyca ramosa、Thallophycasp.、Thallophycoides phloeatus、Wengania exquisita、W.格洛博萨，W. minuta 和两个未命名的物种。一系列Wengania minuta标本证实了球状菌体的个体生长。Archaeophycus yunnanensis和Sarcinophycus papilloformis可能是绿藻，而其他则被解释为红藻。多细胞藻类的辐射可能提高了生物泵的效率，影响了埃迪卡拉早期的海洋生态和环境。
Morphologically diverse multicellular algae preserved with anatomical details are recovered from the chert nodules in the member II of the early Ediacaran Doushantuo Formation in the Yangtze Gorges area, South China. They are taxonomically identified asArchaeophycus yunnanensis,Sarcinophycus papilloformis,Thallophyca ramosa,Thallophycasp.,Thallophycoides phloeatus,Wengania exquisita,W. globosa,W. minutaand two unnamed species. An individual growth of spheroidal thallus is evidenced by a series of specimens ofWengania minuta.Archaeophycus yunnanensisandSarcinophycus papilloformisare possibly green algae, while the others are interpreted as red algae. The radiation of multicellular algae likely enhanced the efficiency of the biological pump, influencing the ocean ecology and environment during the early Ediacaran.