Journal
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
Volume 178, Issue 3, Pages 346-374Publisher
OXFORD UNIV PRESS
DOI: 10.1111/boj.12233
Keywords
Alismatales; Arecales; Asparagales; calibration fossil; Dioscoreales; Liliales; Monocotyledonae; Pandanales; Poales; Zingiberales
Categories
Funding
- University of British Columbia Graduate Scholarship
- NSERC (Natural Sciences and Engineering Research Council of Canada) Discovery Grant
- US National Science Foundation [DEB 0830020, DEB 091832, DEB 0919071, DEB 1257080]
- American Philosophical Society
- Direct For Biological Sciences
- Division Of Environmental Biology [0918932, 0919071, 1257080, 0830020] Funding Source: National Science Foundation
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Recent re-examinations and new fossil findings have added significantly to the data available for evaluating the evolutionary history of the monocotyledons. Integrating data from the monocot fossil record with molecular dating techniques has the potential to help us to understand better the timing of important evolutionary events and patterns of diversification and extinction in this major and ancient clade of flowering plants. In general, the oldest well-placed fossils are used to constrain the age of nodes in molecular dating analyses. However, substantial error can be introduced if calibration fossils are not carefully evaluated and selected. Here we propose a set of 34 fossils representing 19 families and eight orders for calibrating the ages of major monocot clades. We selected these fossils because they can be placed in particular clades with confidence and they come from well-dated stratigraphic sequences. As more fossils are discovered or re-examined, these criteria can also be applied to expand the list of the fossils that are most suitable for dating the early branches of monocot phylogeny.(c) 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 178, 346-374.
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