Coral faunal turnover through the Ordovician-Silurian transition in South China and its global implications for carbonate stratigraphy and macroevolution

doi:10.1017/S0016756816000406

	Coral faunal turnover through the Ordovician-Silurian transition in South China and its global implications for carbonate stratigraphy and macroevolution
	Wang Guangxu (王光旭); Zhan Renbin (詹仁斌); Huang Bing (黄冰); Percival, I.G.
	2016
发表期刊	Geological Magazine
ISSN	0016-7568
卷号	154 期号:4 页码:829-836
摘要	A complete coral succession through the Ordovician-Silurian transition in South China reveals an adaptive phase during the Hirnantian glaciation, followed by an early survival phase and finally a late survival phase that persisted into the early Silurian. We demonstrate that a coral assemblage of latest Hirnantian to earliest Silurian age, remarkably similar to those from the Edgewood fauna known from Laurentia, occurs stratigraphically above the typical Hirnantian fauna. This, in combination with other evidence (e.g. brachiopods, lithology and chemostratigraphy), suggests the Edgewood fauna probably post-dated the early-middle Hirnantian glaciation, rather than being coeval with the older glacial-related Hirnantia fauna. Evidence from South China shows that the Edgewood fauna appeared in the very latest Hirnantian and extended into the middle Rhuddanian, considerably younger than previously believed. Such a new correlation necessitates a reassessment of the influence of the end-Ordovician glaciation on biotas. We argue that this major glaciation probably would have substantially affected the ecosystem even in tropical regions, as shown by the development there of the Hirnantia fauna or, alternatively, the presence of a conspicuous stratigraphic hiatus. This suggests a surprisingly rapid biotic recovery during the subsequent postglacial transgression, represented by the flourishing of comparatively diverse shelly faunas (e.g. the Edgewood fauna and the Cathaysiorthis brachiopod fauna) in nearshore shallow water environments from Laurentia to eastern peri-Gondwana terranes or blocks (e.g. South China).
关键词	Hirnantian corals South China Edgewood fauna
DOI	10.1017/S0016756816000406
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000402811500008
出版者	CAMBRIDGE UNIV PRESS
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/13087
专题	中国科学院南京地质古生物研究所其他
通讯作者	Wang Guangxu (王光旭)
推荐引用方式 GB/T 7714	Wang Guangxu ,Zhan Renbin ,Huang Bing ,et al. Coral faunal turnover through the Ordovician-Silurian transition in South China and its global implications for carbonate stratigraphy and macroevolution[J]. Geological Magazine,2016,154(4):829-836.
APA	Wang Guangxu ,Zhan Renbin ,Huang Bing ,&Percival, I.G..(2016).Coral faunal turnover through the Ordovician-Silurian transition in South China and its global implications for carbonate stratigraphy and macroevolution.Geological Magazine,154(4),829-836.
MLA	Wang Guangxu ,et al."Coral faunal turnover through the Ordovician-Silurian transition in South China and its global implications for carbonate stratigraphy and macroevolution".Geological Magazine 154.4(2016):829-836.