Androecium of Archaefructus, the Late Jurassic Angiosperms from Western Liaoning, China

Androecium of Archaefructus, the Late Jurassic Angiosperms from Western Liaoning, China

SUN Ge;ZHENG Shaolin;SUN Chunlin;SUN Yuewu;David L. DILCHER;MIAO Yuyan

【期刊名称】《世界地质（英文版）》 【年(卷),期】2002(005)001

【摘要】Androecium of the earliest known flowering plant Archaefructus liaoningensis was found from the Upper Jurassic Jianshangou Formation of western Liaoning, China. The androecium consists of numerous stamens bearing in pair on the reproductive axes below conduplicate carpels. The stamens are composed of a short filament and basifixed anther for each. Monosulcate pollen in situ are found from the anthers. The characters of the androecium reveals that Archaefructus are probably protandrous, and the paired stamens and monosulcate pollen appear to indicate that Archaefructus, as primitive angiosperms,might be derived from extinct seed -ferns during the Older Mesozoic. Archaefructus is considered Late Jurassic in age. 【总页数】6页(1-6) 【关键词】

Androecium;Archaefructus;Early

angiosperm;Late

Jurassic;Western Liaoning of China

【作者】SUN Ge;ZHENG Shaolin;SUN Chunlin;SUN Yuewu;David L. DILCHER;MIAO Yuyan

【作者单位】Research Center of Paleontology & Stratigraphy, Jilin

University, Changchun,130026, China;Research Center of Paleontology & Stratigraphy, Jilin University, Changchun,130026, China;Research Center

of

Paleontology

&

Stratigraphy, Center

of

Jilin

University,

&

Changchun,130026, China;Research Paleontology

Stratigraphy, Jilin University, Changchun,130026, China;Florida Museum of Natural History, University of Florida, Gainesville,FL32611, USA;Nanjing Institute of Geology and Palaeontology, Academia Sinica, Nanjing,210008, China 【正文语种】中文 【中图分类】P5 【相关文献】

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