We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleFerns diversified in the shadow of angiosperms.AuthorsSchneider, Harald; Schuettpelz, Eric; Pryer, Kathleen M.; Cranfill, Raymond; Magallón, Susana; Lupia, RichardPublicationNature, 2004, Vol 428, Issue 6982, p553ISSN0028-0836Publication typearticleDOI10.1038/nature02361