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First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography

文献类型：期刊论文

作者Jia, Lin-Bo1,3; Su, Tao2,3; Huang, Yong-Jiang1; Wu, Fei-Xiang4; Deng, Tao5; Zhou, Zhe-Kun1,2
刊名JOURNAL OF SYSTEMATICS AND EVOLUTION
出版日期2019-03-01
卷号57期号:2页码:94-104
ISSN号1674-4918
关键词extinct plants paleobotany phytogeography Tibet
DOI10.1111/jse.12435
通讯作者Su, Tao(sutao@xtbg.org.cn) ; Zhou, Zhe-Kun(zhouzk@mail.kib.ac.cn)
英文摘要Cedrelospermum Saporta is an extinct genus in the Ulmaceae with abundant fossil records in North America and Europe. However, so far, fossil records of this genus from Asia are sparse, which limits the interpretations of the morphological evolution and biogeographical history of the genus. Here we report well-preserved fruits (Cedrelospermum tibeticum sp. nov.) and a leaf (Cedrelospermum sp.) of Cedrelospermum from the upper Oligocene Lunpola and Nyima basins in the Qinghai-Tibetan Plateau (QTP). This is the first fossil record of Cedrelospermum in the QTP, showing that this genus grew in this region during the late Oligocene. Cedrelospermum tibeticum fruits are double-winged, morphologically similar to the Eocene and Oligocene double-winged Cedrelospermum species from North America. This supports the hypothesis that Cedrelospermum migrated to Asia from North America by way of the Bering Land Bridge. Given that Cedrelospermum was a typical element of Northern Hemispheric flora in the Paleogene and Neogene, the presence of this genus indicates that the central region of the QTP was phytogeographically linked with other parts of the Northern Hemisphere during the late Oligocene. The morphological observations of C. tibeticum fruits and other double-winged Cedrelospermum fruits suggest an evolutionary trend from obtuse to acute apex for the primary wing. Cedrelospermum tibeticum likely had warm and wet climatic requirements. This type of an environment possibly existed in the central QTP in the late Oligocene, thereby supporting the survival of C. tibeticum.
WOS关键词LUNPOLA BASIN ; TERTIARY ; FRUITS ; AGE
资助项目Major Program of National Natural Science Foundation of China[31590820] ; Major Program of National Natural Science Foundation of China[31590823] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA20070301] ; National Natural Science Foundation of China[41661134049] ; Grant of Natural Environment Research Council[NE/P013805/1] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SMC016] ; Youth Innovation Promotion Association, CAS[2017439] ; Strategic Priority Research Program, CAS[XDPB0502] ; Strategic Priority Research Program, CAS[XDA20070202] ; Strategic Priority Research Program, CAS[XDA20070203]
WOS研究方向Plant Sciences
语种英语
出版者WILEY
WOS记录号WOS:000462163000002
资助机构Major Program of National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; Grant of Natural Environment Research Council ; Key Research Program of Frontier Sciences, CAS ; Youth Innovation Promotion Association, CAS ; Strategic Priority Research Program, CAS
源URL[http://119.78.100.205/handle/311034/9548]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Su, Tao; Zhou, Zhe-Kun
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Jia, Lin-Bo,Su, Tao,Huang, Yong-Jiang,et al. First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2019,57(2):94-104.
APA Jia, Lin-Bo,Su, Tao,Huang, Yong-Jiang,Wu, Fei-Xiang,Deng, Tao,&Zhou, Zhe-Kun.(2019).First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography.JOURNAL OF SYSTEMATICS AND EVOLUTION,57(2),94-104.
MLA Jia, Lin-Bo,et al."First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai-Tibetan Plateau: Implications for morphological evolution and biogeography".JOURNAL OF SYSTEMATICS AND EVOLUTION 57.2(2019):94-104.

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来源：古脊椎动物与古人类研究所

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