Abstract
There have been many proposals of candidates for the ancestors or closest relatives of angiosperms. Some of the currently more frequently cited examples are introduced here. Although none of them has been confirmed to be closely related to angiosperms, a comparison between them and angiosperms helps to identify where the problem and gaps in knowledge are. It is these candidates and their possible relationships to angiosperms that compose the foundation on which the current systematics of seed plants is based. Understanding them is also helpful to make a balanced judgment of the point of view in this book.
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Wang, X. (2010). Suggested Angiosperm Ancestors. In: The Dawn Angiosperms. Lecture Notes in Earth Sciences, vol 121. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01161-0_2
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