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Palms (Arecaceae) from a Paleocene rainforest of northern Colombia

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dc.contributor.author Gomez-Navarro, Carolina en
dc.contributor.author Jaramillo, Carlos A. en
dc.contributor.author Herrera, Fabiany en
dc.contributor.author Wing, Scott L. en
dc.contributor.author Callejas, Ricardo en
dc.date.accessioned 2010-03-24T17:41:41Z
dc.date.available 2010-03-24T17:41:41Z
dc.date.issued 2009
dc.identifier.citation Gomez-Navarro, Carolina, Jaramillo, Carlos A., Herrera, Fabiany, Wing, Scott L., and Callejas, Ricardo. 2009. "<a href="https://repository.si.edu/handle/10088/8836">Palms (Arecaceae) from a Paleocene rainforest of northern Colombia</a>." <em>American Journal of Botany</em>. 96 (7):1300&ndash;1312. <a href="https://doi.org/10.3732/ajb.0800378">https://doi.org/10.3732/ajb.0800378</a> en
dc.identifier.issn 0002-9122
dc.identifier.uri http://hdl.handle.net/10088/8836
dc.description.abstract Palms are a monophyletic group with a dominantly tropical distribution; however, their fossil record in low latitudes is strikingly scarce. In this paper, we describe fossil leaves, inflorescences, and fruits of palms from the middle to late Paleocene Cerrejon Formation, outcropping in the Rancheria River Valley, northern Colombia. The fossils demonstrate the presence of at least five palm morphospecies in the basin ca. 60 Ma. We compare the morphology of the fossils with extant palms and conclude that they belong to at least three palm lineages: the pantropical Cocoseae of the subfamily Arecoideae, the monotypic genus Nypa, and either Calamoideae or Coryphoideae. The fossil fruits and inflorescences are among the oldest megafossil records of these groups and demonstrate that the divergence of the Cocoseae was more than 60 Ma, earlier than has previously been thought. These fossils are useful in tracing the range expansion or contraction of historical or current neotropical elements and also have profound implications for the understanding of the evolution of neotropical rainforests. en
dc.relation.ispartof American Journal of Botany en
dc.title Palms (Arecaceae) from a Paleocene rainforest of northern Colombia en
dc.type Journal Article en
dc.identifier.srbnumber 78964
dc.identifier.doi 10.3732/ajb.0800378
rft.jtitle American Journal of Botany
rft.volume 96
rft.issue 7
rft.spage 1300
rft.epage 1312
dc.description.SIUnit CTPA en
dc.description.SIUnit Center for Tropical Paleontology and Archaeology en
dc.description.SIUnit NH-EOL en
dc.description.SIUnit STRI en
dc.description.SIUnit NH-Paleobiology en
dc.description.SIUnit NMNH en
dc.citation.spage 1300
dc.citation.epage 1312

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