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题名: In search of the first flower: A Jurassic angiosperm, Archaefructus, from northeast China
作者: Sun, G; Dilcher, DL; Zheng, SL; null(周浙昆)
刊名: SCIENCE
英文摘要: Angiosperm fruiting, axes were discovered from the Upper Jurassic of China. Angiosperms are defined by carpels enclosing ovules, a character demonstrated in this fossil. This feature is Lacking in other fossils reported to be earliest angiosperms. The fruits are small follicles formed from conduplicate carpels helically arranged. Adaxial elongate stigmatic crests are conspicuous on each carpel. The basal one-third of the axes bore deciduous organs of uncertain affinities. No scars of subtending floral organs are present to define the individual fertile parts as floral units, but the Leaf-Like structures subtending each axis define them as flowers. These fruiting axes have primitive characters and characters not considered primitive.
出版日期: 1998-11-27
卷号: 282, 期号:5394, 页码:1692-1695
语种: 英语
收录类别: SCI
学科分类: Multidisciplinary Sciences
ISSN号: 0036-8075
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3124
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.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.Univ Florida, Florida Museum Nat Hist, Gainesville, FL 32611 USA
3.Shenyang Inst Geol & Mineral Resources, Shenyang 110032, Peoples R China
4.Acad Sinica, Kunming Inst Bot, Kunming 650204, Peoples R China

Recommended Citation:
Sun, G; Dilcher, DL; Zheng, SL; Zhou, ZK.In search of the first flower: A Jurassic angiosperm, Archaefructus, from northeast China,SCIENCE,1998,282(5394):1692-1695
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