Archaefructus -: Angiosperm precursor or specialized early angiosperm?

被引:122
作者
Friis, EM
Doyle, JA
Endress, PK
Leng, Q
机构
[1] Swedish Museum Nat Hist, Dept Palaeobot, SE-10405 Stockholm, Sweden
[2] Univ Calif Davis, Sect Evolut & Ecol, Davis, CA 95616 USA
[3] Univ Zurich, Inst Systemat Bot, CH-8008 Zurich, Switzerland
[4] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
关键词
D O I
10.1016/S1360-1385(03)00161-4
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
With molecular analyses indicating that angiosperms are not closely related to any other extant seed plant group, information from fossils might provide the only basis for reconstructing their origin. Therefore the description of a new Early Cretaceous angiosperm, Archaefructus, placed as the sister of all extant angiosperms, has created much debate and optimism. However, we question both the interpretation and the analysis of Archaefructus, concluding that it might be a crown-group angiosperm specialized for aquatic habit rather than a more primitive relative.
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页码:369 / 373
页数:5
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