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Hemitrapa Miki (Lythraceae) from the earliest Oligocene of southeastern Qinghai-Tibetan Plateau and its phytogeographic implications
Su, Tao3; Li, Shu-Feng; Tang, He3; Huang, Yong-Jiang; Li, Shi-Hu; Deng, Cheng-Long; Zhou, Zhe-Kun
2018
Source PublicationREVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN0034-6667
Volume257Issue:xPages:57-63
Abstract

Hemitrapa Mild (Lythraceae) is an extinct aquatic genus that shows the close morphological affinity to water chestnut (Trapa), it has rich fossil records ranging from the late Paleocene to early Pliocene of the Northern Hemisphere. Recently, we found numerous Hemitrapa fruit fossils and pollen grains of Hemitrapa from the earliest Oligocene of southeastern Qinghai-Tibetan Plateau, comprising its southmost fossil record worldwide and the earliest fossil record in Asia. We studied the morphology of fruit fossils and pollen grains of Hemitrapa, and compared them with previous fossil records. Two pairs of arms and parallel ridges along the main body of the fruit, as well as pollen grains with three distinctive crests and of a smaller size than living Trapa natans, clearly assign these fossils to Hemitrapa. We described here a new species, namely Hemitrapa alpina T. Su et Z.K. Zhou sp. nov. The finding of H. alpina could not only contribute to plant diversity in the geological past of the Qinghai-Tibetan Plateau, but also indicate that Hemitrapa grew on the plateau by the earliest Oligocene. Meanwhile, H. alpina greatly expands the geographic distribution of Hemitrapa during the Paleogene of the Northern Hemisphere, the disappearance of Hemitrapa might be due to dramatic paleoenvironmental changes on the plateau since the Paleogene. (C) 2018 Elsevier B.V. All rights reserved.

Departmentxtbg-ir
KeywordBiodiversity Extinction Fossil Hemitrapa Oligocene The Qinghai-tibetan Plateau Trapa
Subject AreaPlant Sciences ; Paleontology
DOI10.1016/j.revpalbo.2018.06.001
Indexed BySCI
Language英语
WOS IDWOS:000447101200005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11083
Collection古生态研究组
Affiliation1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla 666303, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650204, Yunnan, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Guangzhou 510275, Guangdong, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Su, Tao,Li, Shu-Feng,Tang, He,et al. Hemitrapa Miki (Lythraceae) from the earliest Oligocene of southeastern Qinghai-Tibetan Plateau and its phytogeographic implications[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2018,257(x):57-63.
APA Su, Tao.,Li, Shu-Feng.,Tang, He.,Huang, Yong-Jiang.,Li, Shi-Hu.,...&Zhou, Zhe-Kun.(2018).Hemitrapa Miki (Lythraceae) from the earliest Oligocene of southeastern Qinghai-Tibetan Plateau and its phytogeographic implications.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,257(x),57-63.
MLA Su, Tao,et al."Hemitrapa Miki (Lythraceae) from the earliest Oligocene of southeastern Qinghai-Tibetan Plateau and its phytogeographic implications".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 257.x(2018):57-63.
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