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Mummified Magnoliaceae woods from the upper Oligocene of South China, with biogeography, paleoecology, and wood trait evolution implications
Huang, Lu-Liang1,2,3; Jin, Jian-Hua1,2; Quan, Cheng4; Oskolski, Alexei A.3,5,6
2020
Source PublicationJOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
Volume58Issue:1Pages:89-100
Abstract

In this paper, we describe a new species Magnolia nanningensis sp. nov., based on exceptionally well-preserved mummified fossil woods from the late Oligocene of the Nanning Basin, Guangxi, South China. The features of these woods indicate a close affinity to the section Michelia of the subgenus Yulania belonging to the genus Magnolia sensu lato (Magnoliaceae). Magnolia nanningensis is the first fossil record of the section Michelia from China, the modern diversity center of this group. These mummified woods provide fossil evidence supporting molecular dating that estimated an Oligocene age for divergence of the tropical evergreen section Michelia and the temperate deciduous section Yulania. Helical thickenings on vessel walls and a high degree of vessel grouping found in these fossil woods could be adaptive to temporary, possibly seasonal, droughts and, as suggested by other woods from the Nanning Basin, could be indicative of a monsoon-influenced tropical climate in Guangxi during the late Oligocene. Helical thickenings have not been reported in magnoliaceous fossil woods prior to the Oligocene. The appearance of this trait was presumably a response to abrupt climate cooling near the Eocene-Oligocene boundary, followed by increase in climate seasonality. The associated increase of latitudinal zonation might be a possible trigger for divergence between the tropical evergreen sect. Michelia and the temperate deciduous sect. Yulania.

Keywordevolution late Oligocene Magnoliaceae mummified wood paleoecology South China
DOI10.1111/jse.12480
Language英语
WOS KeywordFOSSIL ANGIOSPERM WOOD ; LIRIODENDRON MAGNOLIACEAE ; MOLECULAR PHYLOGENY ; CLIMATE-CHANGE ; MIDDLE EOCENE ; FRUITS ; ANATOMY ; FLORA ; SEEDS ; INSIDEWOOD
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000505634100008
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/29566
Collection中国科学院南京地质古生物研究所
Corresponding AuthorJin, Jian-Hua; Quan, Cheng
Affiliation1.Sun Yat Sen Univ, Guangdong Prov Key Lab Plant Resources, State Key Lab Biocontrol, Guangzhou 510275, Peoples R China
2.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
4.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China
5.Univ Johannesburg, Dept Bot & Plant Biotechnol, ZA-2006 Johannesburg, South Africa
6.Russian Acad Sci, Komarov Bot Inst, St Petersburg 197376, Russia
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Huang, Lu-Liang,Jin, Jian-Hua,Quan, Cheng,et al. Mummified Magnoliaceae woods from the upper Oligocene of South China, with biogeography, paleoecology, and wood trait evolution implications[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2020,58(1):89-100.
APA Huang, Lu-Liang,Jin, Jian-Hua,Quan, Cheng,&Oskolski, Alexei A..(2020).Mummified Magnoliaceae woods from the upper Oligocene of South China, with biogeography, paleoecology, and wood trait evolution implications.JOURNAL OF SYSTEMATICS AND EVOLUTION,58(1),89-100.
MLA Huang, Lu-Liang,et al."Mummified Magnoliaceae woods from the upper Oligocene of South China, with biogeography, paleoecology, and wood trait evolution implications".JOURNAL OF SYSTEMATICS AND EVOLUTION 58.1(2020):89-100.
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