New records of Podocarpium A. Braun ex Stizenberger (Fabaceae) from Check for the Oligocene to Miocene of China: Reappraisal of the phylogeographical updates history of the genus

doi:10.1016/j.revpalbo.2018.11.002

	New records of Podocarpium A. Braun ex Stizenberger (Fabaceae) from Check for the Oligocene to Miocene of China: Reappraisal of the phylogeographical updates history of the genus
	Li, Xiangchuan 1,2,3,7; Ma, Fujun 4,5,6; Xiao, Liang 1,2,3,7; He, Wenlong 8; Sun, Bainian 5,6; Quan, Cheng 1,2,3; Yao, Yunzhi 9; Ren, Dong 9; Wang, Xing 1,2; Wang, Qin 1,2
刊名	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
	2019
卷号	260 页码:38-50
关键词	Legumiosae Cenozoic Fossil fruits Biogeography Palaeoecology Eastern Asia
ISSN号	0034-6667
DOI	10.1016/j.revpalbo.2018.11.002
英文摘要	Podocarpium (Fabaceae), characterized by single seeded pods and paripinnate compound leaves, is well known as an extinct legume genus having extensive fossil occurrences from the Miocene of Central Europe and eastern Asia. However, the Palaeogene unambiguous megafossils are quite scarce, especially the Oligocene record from eastem Asia, which heavily impedes our understanding of early dispersal patterns and infrageneric relationships of this enigmatic genus. Here, we described dozens of legume specimens from the Oligocene Ningming Formation of Guangxi in South China, the Early Miocene Guide Group of Qinghai in Northwest China and the Middle-Late Miocene Shengxian Formation of Zhejiang in Southeast China as Podocarpium podocarpum (A. Braun) Herendeen based on extremely similar fruit characters. Meanwhile, we reexamined variation in fruit morphology among the previously reported fruits of Eurasia and present legumes as a basis for interpreting the infrageneric relationship and subfamily affinity of Podocarpium. The high similarities presented by these fossil fruits support the previous recognition of the specimens from the Oligocene-Miocene of Central Europe and the Miocene- lio-cene of eastern Asia as P. podocarpum, but such a low species diversity of Podocarpium appears to indicate a bradytelic morphological evolution for this whole ancient lineage through geologic time. Moreover, judging from seed orientation as well as seed and fruit comparative sizes, the oblong seed is parallel to the long axis of the fruit and its placentation is near the apex of the seed chamber, which favor the previous assignment of Podocarpium to the subfamily Caesalpinioideae. Additionally, we speculated that this extinct genus may prefer a warm and humid (or mildly arid) environment by plotting the megafossil localities on the overall Eocene, Oligocene and Miocene palaeoclimate maps based on continental drift. The Oligocene occurrence from the Ningming Formation in Guangxi, South China sheds new light on the historical biogeographical pattern between Central Europe and eastern Asia, i.e. after the probable origin in low latitude tropic coastal regions of southernmost South China (i.e. Hainan) by the Middle Eocene, Podocarpium may subsequently disperse into Guangxi and then Europe via a probable low-latitude land connection located among the Tethys and Paratethys seas to the southwest of Eurasia in the Early Oligocene, independent of the gradual closure of the Turgai Strait in the middle-high latitudes during the Oligocene. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41820104002] ; National Natural Science Foundation of China[41872017] ; National Natural Science Foundation of China[41772009] ; National Natural Science Foundation of China[41202008] ; National Natural Science Foundation of China[31730087] ; Foundation of the State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[183125] ; Foundation of the State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[153108] ; Special Fund for Basic Scientific Research of Central Colleges, Chang'an University[310827172005] ; Special Fund for Basic Scientific Research of Central Colleges, Chang'an University[300102278205] ; Special Fund for Basic Scientific Research of Central Colleges, Chang'an University[300102278301] ; Program for Changjiang Scholars and Innovative Research Team in University[IRT17R75] ; Project of High-level Teachers in Beijing Municipal Universities[IDHT20180518]
WOS关键词	NORTHEASTERN TIBETAN PLATEAU ; EASTERN ZHEJIANG ; EPIPHYLLOUS FUNGI ; BUXUS LEAVES ; SOUTH CHINA ; SEED CONES ; UPLIFT ; GUANGXI ; EVOLUTION ; PALEOGENE
WOS研究方向	Plant Sciences ; Paleontology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000454374000004
资助机构	National Natural Science Foundation of China ; Foundation of the State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; Special Fund for Basic Scientific Research of Central Colleges, Chang'an University ; Program for Changjiang Scholars and Innovative Research Team in University ; Project of High-level Teachers in Beijing Municipal Universities
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/16134]
专题	中国科学院南京地质古生物研究所
通讯作者	Li, Xiangchuan; Ma, Fujun; Sun, Bainian
作者单位	1.Changan Univ, Coll Earth Sci & Resources, Xian 710054, Shaanxi, Peoples R China 2.Changan Univ, Minist Educ, Key Lab Western Mineral Resources & Geol Engn, Xian 710054, Shaanxi, Peoples R China 3.Northwest Univ, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China 4.Guizhou Educ Univ, Sch Geog & Tourism, Guiyang 550018, Guizhou, Peoples R China 5.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China 6.Lanzhou Univ, Key Lab Mineral Resources Western China Gansu Pro, Lanzhou 730000, Peoples R China 7.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 8.Xian Univ Sci & Technol, Coll Geol & Environm, Xian 710054, Shaanxi, Peoples R China 9.Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiangchuan,Ma, Fujun,Xiao, Liang,et al. New records of Podocarpium A. Braun ex Stizenberger (Fabaceae) from Check for the Oligocene to Miocene of China: Reappraisal of the phylogeographical updates history of the genus[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2019,260:38-50.
APA	Li, Xiangchuan.,Ma, Fujun.,Xiao, Liang.,He, Wenlong.,Sun, Bainian.,...&Xie, Sanping.(2019).New records of Podocarpium A. Braun ex Stizenberger (Fabaceae) from Check for the Oligocene to Miocene of China: Reappraisal of the phylogeographical updates history of the genus.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,260,38-50.
MLA	Li, Xiangchuan,et al."New records of Podocarpium A. Braun ex Stizenberger (Fabaceae) from Check for the Oligocene to Miocene of China: Reappraisal of the phylogeographical updates history of the genus".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 260(2019):38-50.