A Cretaceous Gondwana origin of the wax palm subfamily (Ceroxyloideae: Arecaceae) and its paleobiogeographic context
文献类型:期刊论文
作者 | Khan, Mahasin Ali; Hazra, Manoshi5; Mahato, Sumana; Spicer, Robert A.; Roy, Kaustav; Hazra, Taposhi; Bandopadhaya, Manosij; Spicer, Teresa E., V; Bera, Subir2 |
刊名 | REVIEW OF PALAEOBOTANY AND PALYNOLOGY |
出版日期 | 2020 |
卷号 | 283期号:x页码:_ |
ISSN号 | 0034-6667 |
关键词 | Ceroxyloideae Deccan Intertrappean Beds Fibrovascular bundles India Late Cretaceous-early Paleocene Palm anatomy |
DOI | 10.1016/j.revpalbo.2020.104318 |
英文摘要 | Here we study a well-preserved petrified palm stem from the latest Maastrichtian (Late Cretaceous) to earliest Danian (early Paleocene) sediments (c. 66-65 Ma old) of the Deccan Intertrappean Beds of Madhya Pradesh, Central India. We infer its systematic relationships and relevance to palm evolution. The significant anatomical attributes of the fossil include the presence of fibrovascular bundles (fvbs) with reniform dorsal fibrous sclerenchyma (dcap), 2 to >4 metaxylem vessel elements in each fvb, lacunar ground parenchyma tissue, and centrifugal differentiation of the fibrous dcap parts of the fvbs. These features reveal a dose resemblance to extant taxa of the wax palm subfamily Ceroxyloideae, now with a disjunct distribution in America, Australia, Madagascar and the Comoros. The Cretaceous stem is described here as Palmoxylon ceroxyloides Khan, Hazra et Bera, sp. nov. This is the oldest reliable occurrence of Ceroxyloideae in the fossil record. Present fossil evidence indicates that the sub-family was already present in India in the Late Cretaceous (Maastrichtian), about 10-15 million years before the collision of India with Eurasia. Post-collision the subfamily may have been dispersed to East Asia and then to North America via the Bering land bridge (BLB), finally reaching South America via the Isthmus of Panama link during the Miocene. However, the present-day distribution of Ceroxyloideae in Australia, Madagascar and Comoros may be explained by a historical long-distance dispersal (LDD) hypothesis. (C) 2020 Elsevier B.V. All rights reserved. |
学科主题 | Plant Sciences ; Paleontology |
语种 | 英语 |
WOS记录号 | WOS:000591773400005 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11904] |
专题 | 西双版纳热带植物园_古生态研究组 |
作者单位 | 1.Univ Calcutta, Ctr Adv Study, Dept Bot, 35 BC Rd, Kolkata 700019, India 2.Spicer, Robert A.] Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England 3.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China 4.Presidency Univ, 86-1 Coll St,Calcutta Univ Rd, Kolkata 700073, W Bengal, India 5.Sidho Kanho Birsha Univ, Dept Bot, Ranchi Rd, Purulia 723104, India |
推荐引用方式 GB/T 7714 | Khan, Mahasin Ali,Hazra, Manoshi,Mahato, Sumana,et al. A Cretaceous Gondwana origin of the wax palm subfamily (Ceroxyloideae: Arecaceae) and its paleobiogeographic context[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2020,283(x):_. |
APA | Khan, Mahasin Ali.,Hazra, Manoshi.,Mahato, Sumana.,Spicer, Robert A..,Roy, Kaustav.,...&Bera, Subir.(2020).A Cretaceous Gondwana origin of the wax palm subfamily (Ceroxyloideae: Arecaceae) and its paleobiogeographic context.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,283(x),_. |
MLA | Khan, Mahasin Ali,et al."A Cretaceous Gondwana origin of the wax palm subfamily (Ceroxyloideae: Arecaceae) and its paleobiogeographic context".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 283.x(2020):_. |
入库方式: OAI收割
来源:西双版纳热带植物园
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