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题名: Fossil nothofagaceous leaves from the Eocene of western Antarctica and their bearing on the origin, dispersal and systematics of Nothofagus
作者: Li HaoMin; Zhou ZheKun
刊名: SCIENCE IN CHINA SERIES D-EARTH SCIENCES
关键词: Antarctica ; Nothofagus ; leaf morphology ; leaf impression fossils ; Gondwanaland ; Nothofagofolia gen. et sp nov. ; Eocene
英文摘要: Fossil leaves resembling Nothofagaceae have been investigated from the Eocene of western Antarctica and a new form genus Nothofagofolia is proposed for these kinds of fossils. Some new specimens belonging to this form genus are described. They were collected from the Fossil Hill locality of Fildes Peninsula, King George Island, South Shetland Islands, western Antarctica. Two new species, two new combinations and an unnamed species are reported. A number of published Nothofagus leaf fossils from the same locality are discussed and revised. As a result of these studies of Nothofagus leaf morphology, we conclude that (1) Nothofagus probably originated in high latitudes of the Southern Hemisphere during the middle-late Late Cretaceous and diversified, dispersed gradually to the lower latitudes of the same hemisphere; (2) leaf morphological characters are significant for the systematics of the family Nothofagaceae, especially at the intrageneric level; and (3) extant species of Nothofagus known from southern temperate areas have more primitive leaf morphological characters and lower leaf ranks than those from tropical mountains as well as those of the Fagaceae and Betulaceae.
出版日期: 2007-10-01
卷号: 50, 期号:10, 页码:1525-1535
DOI标识: 10.1007/s11430-007-0102-0
语种: 英语
收录类别: SCI
学科分类: Geosciences, Multidisciplinary
ISSN号: 1006-9313
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3209
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, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China

Recommended Citation:
Li, HM; Zhou, ZK.Fossil nothofagaceous leaves from the Eocene of western Antarctica and their bearing on the origin, dispersal and systematics of Nothofagus,SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2007,50(10):1525-1535
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