Archaefructaceae, a new basal angiosperm family |
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| Authors: | Sun Ge Ji Qiang Dilcher David L Zheng Shaolin Nixon Kevin C Wang Xinfu |
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| Institution: | Research Center of Palaeontology, Jilin University, Changchun 130026, China. sunge@jlu.edu.cn |
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| Abstract: | Archaefructaceae is proposed as a new basal angiosperm family of herbaceous aquatic plants. This family consists of the fossils Archaefructus 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. |
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