First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications

doi:10.1007/s00299-017-2209-x

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	First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications
	Khan, Mahasin Ali 1; Bera, Meghma 1; Spicer, Robert A.; Spicer, Teresa E. V.; Bera, Subir 1
刊名	REVIEW OF PALAEOBOTANY AND PALYNOLOGY
	2017
卷号	247 页码:83-96
关键词	Mastixia arborea Macrofossil Mio-Pleistocene Paleogeography Paleoclimate Arunachal Pradesh
ISSN号	0034-6667
DOI	10.1007/s00299-017-2209-x
文献子类	Article
英文摘要	Mastixioids in the family Cornaceae, are presently native only in limited areas of Asia, they have rich fossil fruit record in Cenozoic sediments of Europe and North America, but unfortunately none have been reported from Cenozoic sediments of India and Asia until now. Here, we report the occurrence of leaf remains (both impression and compression) along with carbonised fruits, resembling morphologically and anatomically those of the extant endemic species Mastixia arborea C.B. Clarke. Our materials were recovered from the middle Miocene to early Pleistocene Siwalik sediments exposed around West Kameng and Papumpare districts in Arunachal Pradesh, eastern Himalaya. These new fossil materials confirm the existence of Mastixia in the Miocene-Pleistocene Siwalik forests in India. At present the modern analogue does not grow in the eastern Himalaya and is endemic to the tropical evergreen forests of the Western Ghats, situated at the same palaeolatitude as the fossil locality. Extinction from the entire eastern Himalaya and probable movement of this taxon to the Western Ghats is likely due to climate change in the area, related to the Himalayan Orogeny during Miocene-Pleistocene times. The disappearance of Mastixia from this area may be related to the gradual intensification of rainfall seasonality since the late Miocene. The recovery of this species and our earlier-described evergreen taxa from the same Siwalik time (Mio-Pleistocene), suggest the existence of tropical, warm and humid climatic conditions during the period of deposition. The leaf and fruit remains are here described as new species, namely Mastixia asiatica Khan. Bera M et Bera S, sp. nov. and Mastixia siwalika Khan, Bera Met Bera S, sp. nov. respectively. This report documents the first fossil record of Mastixia leaf remains using both macro and micromorphological characters. We also review the historical phytogeography, and highlight the phytogeographic implication of, the mastixioids. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Plant Sciences
电子版国际标准刊号	1879-0615
出版地	AMSTERDAM
WOS关键词	SEDIMENTS MIDDLE MIOCENE ; NEOGENE SIWALIK FORESTS ; WESTERN NORTH-AMERICA ; RBCL SEQUENCE DATA ; ARUNACHAL-PRADESH ; EASTERN HIMALAYA ; PHYLOGENETIC-RELATIONSHIPS ; LOWER PLEISTOCENE ; KIMIN FORMATION ; FRUITS
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000414503400009
资助机构	Department of Science and Technology, New Delhi, IndiaDepartment of Science & Technology (India) [SR/S4/ES-67/2003]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/22240]
专题	系统与进化植物学国家重点实验室
作者单位	1.Sidho Kanho Birsha Univ, Dept Bot, Ranchi Rd, Purulia 723104, India 2.Univ Calcutta, Dept Bot, Ctr Adv Study, 35 BC Rd, Kolkata 700019, India 3.Spicer, Robert A.] Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England 4.Spicer, Robert A.; Spicer, Teresa E. V.] Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Khan, Mahasin Ali,Bera, Meghma,Spicer, Robert A.,et al. First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2017,247:83-96.
APA	Khan, Mahasin Ali,Bera, Meghma,Spicer, Robert A.,Spicer, Teresa E. V.,&Bera, Subir.(2017).First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,247,83-96.
MLA	Khan, Mahasin Ali,et al."First occurrence of mastixioid (Cornaceae) fossil in India and its biogeographic implications".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 247(2017):83-96.