Fossil nothofagaceous leaves from the Eocene of western Antarctica and their bearing on the origin, dispersal and systematics of Nothofagus

doi:10.1007/s11430-007-0102-0

	Fossil nothofagaceous leaves from the Eocene of western Antarctica and their bearing on the origin, dispersal and systematics of Nothofagus
	Li HaoMin ; Zhou ZheKun
通讯作者	zhouzk@mail.kib.ac.cn
	2007-10-01
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN	1006-9313
卷号	50 期号:10 页码:1525-1535
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.
关键词	Antarctica Nothofagus Leaf Morphology Leaf Impression Fossils Gondwanaland Nothofagofolia Gen. Et Sp Nov. Eocene
学科领域	Geosciences, Multidisciplinary
DOI	10.1007/s11430-007-0102-0
收录类别	SCI
语种	英语
WOS记录号	WOS:000250583000011
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/3209
专题	中国科学院东亚植物多样性与生物地理学重点实验室
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
推荐引用方式 GB/T 7714	Li HaoMin,Zhou ZheKun. Fossil nothofagaceous leaves from the Eocene of western Antarctica and their bearing on the origin, dispersal and systematics of Nothofagus[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2007,50(10):1525-1535.
APA	Li HaoMin,&Zhou ZheKun.(2007).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,50(10),1525-1535.
MLA	Li HaoMin,et al."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 50.10(2007):1525-1535.

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