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Fossil leaves of Podocarpus subgenus Foliolatus (Podocarpaceae) fromthe Pliocene of southwestern China and biogeographic history of Podocarpus
Wu, Jing-Yu1,2,3; Chen, Hui1,2; Ruan, Shi-Cheng1,2; Yang, Meng1,2; Mo, Lin-Bo1,2; Ji, Bao-Qiang4; Zhang, Jin-Long4; Ding, Su-Ting1,2,3
2021-04-01
Source PublicationREVIEW OF PALAEOBOTANY AND PALYNOLOGY
ISSN0034-6667
Volume287Pages:13
Abstract

Phylogenetic analyses indicate that the genus Podocarpus diverged around the Cretaceous/Paleogene boundary, and two monophyletic subgenera Podocarpus and Foliolatus had differentiated during the Paleogene. Most of described fossil remains were related to the subgenus Podocarpus, but those of the subgenus Foliolatus have not been well documented. Here, we described a new species of Podocarpus, P. yunnanensis sp. nov., and P. cf. forrestii from the lower Pliocene of western Yunnan, China based on a detailed comparisons of gross leaf morphology and cuticular structures between the studied fossils and extant Podocarpus. These two fossil taxa together with P. pliomacrophyllus H. Chen et J.Y. Wu from the same horizon, revealed a thriving of Podocarpus in western Yunnan during the Pliocene. For the subgenus Foliolatus, its early representatives might originate from Australasia and spread northward to northeastern India at least during the late Oligocene. The Neriifolius subclade within the subgenus is much older than the estimate of molecular clock studies, and the Indochinese subclade is probably derived from a rapid diversification driven by the continuous uplift of Hengduan Mountains (HDM) with the accompanying climate fluctuations since the late Miocene. Moreover, the thriving of Podocarpus in the Pliocene of western Yunnan reveals a warm and humid climate during that period. The Pleistocene glaciation and the geographic barriers posted by the HDM might contribute to the modern distribution of Podocarpus in South China and Indochina Peninsula. (C) 2021 Elsevier B.V. All rights reserved.

KeywordLeaf morphology Cuticle Diversification Hengduan Mountains Yunnan
DOI10.1016/j.revpalbo.2021.104380
Indexed BySCI
Language英语
WOS KeywordHENGDUAN MOUNTAINS ; EOCENE ; SOUTH ; CONIFER ; UPLIFT ; DIVERSIFICATION ; TECTONICS ; REVISION ; FLORA
Funding ProjectNational Natural Science Foundation of China[31870200] ; Chinese Academy of Sciences[XDB26000000] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0704] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS[183124]
WOS Research AreaPlant Sciences ; Paleontology
WOS SubjectPlant Sciences ; Paleontology
WOS IDWOS:000661864500003
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38364
Collection中国科学院南京地质古生物研究所
Corresponding AuthorDing, Su-Ting
Affiliation1.Lanzhou Univ, Coll Earth & Environm Sci, Sch Earth Sci, Key Lab Western Chinas Environm Syst,Minist Educ, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Sch Earth Sci, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
4.PetroChina, Xinjiang Oilfield Co, Karamay 834000, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Wu, Jing-Yu,Chen, Hui,Ruan, Shi-Cheng,et al. Fossil leaves of Podocarpus subgenus Foliolatus (Podocarpaceae) fromthe Pliocene of southwestern China and biogeographic history of Podocarpus[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2021,287:13.
APA Wu, Jing-Yu.,Chen, Hui.,Ruan, Shi-Cheng.,Yang, Meng.,Mo, Lin-Bo.,...&Ding, Su-Ting.(2021).Fossil leaves of Podocarpus subgenus Foliolatus (Podocarpaceae) fromthe Pliocene of southwestern China and biogeographic history of Podocarpus.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,287,13.
MLA Wu, Jing-Yu,et al."Fossil leaves of Podocarpus subgenus Foliolatus (Podocarpaceae) fromthe Pliocene of southwestern China and biogeographic history of Podocarpus".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 287(2021):13.
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