Assertion: angiosperm | /r/HasProperty | monophyletic
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Source sentences:
text: Having made this discovery, the team now wants to understand whether angiosperms are either monophyletic -- which would mean Nanjinganthus represents a stem group giving rise to all later species -- or polyphyletic, whereby Nanjinganthus represents an evolutionary dead end and has little to do with many later species.
text: All believed that flowering plants were monophyletic and derived from a gymnosperm ancestor.