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This book is about fossil plants of so-called "pre-historic" angiosperms. It reflects the newest progress in research on the origin of angiosperms, and will definitely trigger many new ideas in research. It emphasizes the early Cretaceous and Jurassic materials, rather than later ones, as they are the key periods for the origin of angiosperms.The author integrates multiple techniques, including SEM, TEM, light microscopy, peeling and cladistics, to study the morphology, anatomy and phylogeny of the fossils. Several Jurassic materials of angiosperms that have never been reported before are included, these used to be thought as pre-historic for flowering plants. Two more fossils angiosperms from the Yixian Formation, where Archaefructus was excavated, are reported. Newer and stricter criterion for identifying fossil angiosperms is proposed.