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Archaefructaceae, a New Basal Angiosperm Family
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Journal Article
Archaefructaceae, a New Basal Angiosperm Family
2002
Overview
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.
Publisher
American Society for the Advancement of Science,American Association for the Advancement of Science,The American Association for the Advancement of Science
Subject
/ Anthers
/ Botany
/ Carpels
/ China
/ Exact sciences and technology
/ Fossils
/ Fruits
/ Genetics
/ Leaves
/ Magnoliopsida - anatomy & histology
/ Magnoliopsida - classification
/ Magnoliopsida - growth & development
/ Plant Leaves - anatomy & histology
/ Plant Roots - anatomy & histology
/ Plant Shoots - anatomy & histology
/ Plant Stems - anatomy & histology
/ Plant Structures - anatomy & histology
/ Plants
/ Pollen
/ Stamens
/ Taxa
/ Water
