A New Species of Tsuga (Pinaceae) based on Lignified Wood from the Late Miocene of Central Yunnan, China, and Its Paleoenvironmental Implications

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	A New Species of Tsuga (Pinaceae) based on Lignified Wood from the Late Miocene of Central Yunnan, China, and Its Paleoenvironmental Implications
	Wang Haobo; Bondarenko, Olesia V.; Jacques, Frederic M. B.; Wang Yuehua; Zhou Zhekun
	2015
Source Publication	ACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN	1000-9515
Volume	89 Issue:5 Pages:1429-1439
Abstract	A new species, Tsuga nanfengensis sp. nov. (Pinaceae), is described on the basis of lignified fossil wood from the late Miocene of the Xianfeng Basin, central Yunnan, southwestern China. Detailed observation of the fossil wood specimens show the following characteristics: distinct growth rings, absence of resin canals, uniseriate bordered pits in the radial wall of tracheids, ray tracheids and piceoid and cupressoid cross-field pits. These features indicate similarities to the wood of extant Tsuga canadensis, T. chinensis, and T. dumosa. According to the fossil record, Tsuga was present in Xundian County during the Miocene. Today Tsuga is drought intolerant, preferring wet conditions with no extant species growing naturally in Xundian County. The presence of Tsuga in the Miocene of Xundian County indicates a humid climate consistent with previous palaeoclimatic reconstructions showing a wetter and probably shorter dry season in the Miocene, relative to the present day. Therefore, the change in the local climate such as increasing aridity through the Miocene might explain the local extinction of Tsuga from central Yunnan.
Keyword	Southwestern China Late Pliocene Winter Monsoon Reconstruction Vegetation Climate Cedrus Eocene Region Japan
Language	英语
Document Type	期刊论文
Identifier	https://ir.xtbg.ac.cn/handle/353005/9539
Collection	古生态研究组
Recommended Citation GB/T 7714	Wang Haobo,Bondarenko, Olesia V.,Jacques, Frederic M. B.,et al. A New Species of Tsuga (Pinaceae) based on Lignified Wood from the Late Miocene of Central Yunnan, China, and Its Paleoenvironmental Implications[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2015,89(5):1429-1439.
APA	Wang Haobo,Bondarenko, Olesia V.,Jacques, Frederic M. B.,Wang Yuehua,&Zhou Zhekun.(2015).A New Species of Tsuga (Pinaceae) based on Lignified Wood from the Late Miocene of Central Yunnan, China, and Its Paleoenvironmental Implications.ACTA GEOLOGICA SINICA-ENGLISH EDITION,89(5),1429-1439.
MLA	Wang Haobo,et al."A New Species of Tsuga (Pinaceae) based on Lignified Wood from the Late Miocene of Central Yunnan, China, and Its Paleoenvironmental Implications".ACTA GEOLOGICA SINICA-ENGLISH EDITION 89.5(2015):1429-1439.

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