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题名: The earliest fossil bamboos of China (middle Miocene, Yunnan) and their biogeographical importance
作者: Wang, Li1, 3; Jacques, Frederic M. B.1; Su, Tao1; Xing, Yaowu4; Zhang, Shitao5; Zhou, Zhekun1, 2
刊名: REVIEW OF PALAEOBOTANY AND PALYNOLOGY
关键词: bamboo fossil record ; Bambusiculmus ; Bambusium ; biogeography ; middle Miocene ; Yunnan
英文摘要: Fossil bamboo leaf blades and culms from the middle Miocene deposits of Sanzhangtian, Zhenyuan County, Yunnan, Southwest China are reported for the first time. The distinctive pseudopetioles and parallelodromous venation patterns of the leaf blades and the nodal morphology of the culms support the placement of the fossils into Poaceae subfamily Bambusoideae. We describe one new genus and four new species. Bambusium angustifolia L. Wang et Z.K. Zhou, sp. nov. has leaf blades 0.7-1.6(1.27) cm in width with 3-6(4) lateral veins on both sides of the midrib. Leaf blades of Bambusium latifolia L. Wang et Z.K. Zhou, sp. nov. are 1.4-3.8 (2.16) cm wide with 4-7 (6) lateral veins on both sides of the midrib. Culms of Bambusiculmus lotus L. Wang et Z.K. Zhou, sp. nov. have an internodal external diameter of 1.6-2.9 (2.5) cm, and more or less horizontal nodal line and supranodal ridge, while culm of Bambusiculmus angustus L. Wang et Z.K. Zhou, sp. nov. has an internodal external diameter of only 1.5 cm, and horizontal supranodal ridge and oblique nodal line. Our findings provide the earliest evidence of bamboo fossil leaf blades and culms with detailed external morphological characters in China. These fossils indicate that bamboos in Yunnan began to diversify no later than the middle Miocene. Because Yunnan is one of the biodiversity centres of modern bamboos, these fossils provide new insights into bamboo biogeography. (C) 2013 Elsevier B.V. All rights reserved.
出版日期: 2013-10-15
卷号: 197, 页码:253-265
语种: 英语
收录类别: SCI
学科分类: Plant Sciences ; Paleontology
ISSN号: 0034-6667
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/17303
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
4.Univ Zurich, Inst Systemat Bot, CH-8008 Zurich, Switzerland
5.Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Peoples R China

Recommended Citation:
Wang, Li;Jacques, Frederic M. B.;Su, Tao;Xing, Yaowu;Zhang, Shitao;Zhou, Zhekun.The earliest fossil bamboos of China (middle Miocene, Yunnan) and their biogeographical importance,REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2013,197():253-265
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