Archaefructaceae, a New Basal Angiosperm Family
Archaefructaceae, a New Basal Angiosperm Family
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DOI：
10.1126/science.1069439
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发表时间：
2002-05
期刊：
影响因子：
56.9
通讯作者：
G. Sun;Q. Ji;D. Dilcher;Shaolin Zheng;K. Nixon;Xinfu Wang
中科院分区：
文献类型：
--
作者：
G. Sun;Q. Ji;D. Dilcher;Shaolin Zheng;K. Nixon;Xinfu Wang
古果科(Archaefructaceae)是草本水生植物的一个新的基生被子植物科。该家族由辽宁古生物化石和中华古生物化石组成。11月完整的植物从根到可育的枝条都是已知的。它们的年龄至少为辽宁中国义县组的1.246亿年。当它们的特征被包含在结合的三基因分子和形态分析中时，它们是所有被子植物的姐妹支系。它们的生殖轴没有花瓣和萼片，雄蕊在重复的心皮下成对出现。
Archaefructaceae is proposed as a new basal angiosperm family of herbaceous aquatic plants. This family consists of the fossilsArchaefructus liaoningensis and A.sinensis sp. nov. Complete plants from roots to fertile shoots are known. Their age is a minimum of 124.6 million years from the Yixian Formation, Liaoning, China. They are a sister clade to all angiosperms when their characters are included in a combined three-gene molecular and morphological analysis. Their reproductive axes lack petals and sepals and bear stamens in pairs below conduplicate carpels.