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Ferns diversified in the shadow of angiosperms.

dc.contributor.author Schneider, Harald
dc.contributor.author Schuettpelz, Eric
dc.contributor.author Pryer, Kathleen M
dc.contributor.author Cranfill, Raymond
dc.contributor.author Magallón, Susana
dc.contributor.author Lupia, Richard
dc.date.accessioned 2020-12-05T17:41:10Z
dc.date.available 2020-12-05T17:41:10Z
dc.date.issued 2004-04
dc.identifier.issn 0028-0836
dc.identifier.issn 1476-4687
dc.identifier.uri https://hdl.handle.net/10161/21860
dc.description.abstract The rise of angiosperms during the Cretaceous period is often portrayed as coincident with a dramatic drop in the diversity and abundance of many seed-free vascular plant lineages, including ferns. This has led to the widespread belief that ferns, once a principal component of terrestrial ecosystems, succumbed to the ecological predominance of angiosperms and are mostly evolutionary holdovers from the late Palaeozoic/early Mesozoic era. The first appearance of many modern fern genera in the early Tertiary fossil record implies another evolutionary scenario; that is, that the majority of living ferns resulted from a more recent diversification. But a full understanding of trends in fern diversification and evolution using only palaeobotanical evidence is hindered by the poor taxonomic resolution of the fern fossil record in the Cretaceous. Here we report divergence time estimates for ferns and angiosperms based on molecular data, with constraints from a reassessment of the fossil record. We show that polypod ferns (> 80% of living fern species) diversified in the Cretaceous, after angiosperms, suggesting perhaps an ecological opportunistic response to the diversification of angiosperms, as angiosperms came to dominate terrestrial ecosystems.
dc.language eng
dc.publisher Springer Science and Business Media LLC
dc.relation.ispartof Nature
dc.relation.isversionof 10.1038/nature02361
dc.subject Angiosperms
dc.subject Ferns
dc.subject Biodiversity
dc.subject Evolution, Molecular
dc.subject Phylogeny
dc.subject Time Factors
dc.subject Fossils
dc.subject Molecular Sequence Data
dc.subject Biological Evolution
dc.title Ferns diversified in the shadow of angiosperms.
dc.type Journal article
duke.contributor.id Pryer, Kathleen M|0079353
dc.date.updated 2020-12-05T17:41:09Z
pubs.begin-page 553
pubs.end-page 557
pubs.issue 6982
pubs.organisational-group Trinity College of Arts & Sciences
pubs.organisational-group Biology
pubs.organisational-group Duke Science & Society
pubs.organisational-group Duke
pubs.organisational-group Initiatives
pubs.organisational-group Institutes and Provost's Academic Units
pubs.publication-status Published
pubs.volume 428
duke.contributor.orcid Pryer, Kathleen M|0000-0002-9776-6736


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