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dc.contributor.authorWolfe, Jack A. ( )en_US
dc.contributor.authorUpchurch, Garland R. ( Orcid Icon 0000-0002-2578-4126 )en_US
dc.date.accessioned2007-11-06T21:32:18Z
dc.date.available2012-02-24T10:03:20Z
dc.date.issued1987-08en_US
dc.identifier.citationWolfe, J. A., & Upchurch, G. R. (1987). Leaf assemblages across the Cretaceous-Tertiary boundary in the Raton Basin, New Mexico and Colorado. Proceedings of the National Academy of Science, 84(15), pp. 5096-5100.
dc.identifier.urihttps://digital.library.txstate.edu/handle/10877/2571
dc.description.abstractAnalyses of leaf megafossil and dispersed leaf cuticle assemblages indicate that major ecologic disruption and high rates of extinction occurred in plant communities at the Cretaceous-Tertiary boundary in the Raton Basin. In diversity increase, the early Paleocene vegetational sequence mimics normal short-term etologic succession, but on a far longer time scale. No difference can be detected between latest Cretaceous and early Paleocene temperatures, but precipitation markedly increased at the boundary. Higher survival rate of deciduous versus evergreen taxa supports occurrence of a brief cold interval (‹1 year), as predicted in models of an "impact winter."en_US
dc.formatText
dc.format.extent5 pages
dc.format.medium1 file (.pdf)
dc.language.isoen_US
dc.publisherNational Academy of Sciences
dc.sourceProceedings of the National Academy of Science, 1987, Vol. 84, No. 15, pp. 5096-5100, Washington D.C., United States
dc.subjectPaleobotanyen_US
dc.subjectQuasisuccessionen_US
dc.subjectExtinctionen_US
dc.subjectImpact winteren_US
dc.subjectRaton basin cretaceousen_US
dc.titleLeaf assemblages across the Cretaceous-Tertiary boundary in the Raton Basin, New Mexico and Coloradoen_US
txstate.documenttypeArticle
txstate.departmentBiology


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