Transient Floral Change and Rapid Global Warming at the Paleocene-Eocene Boundary

@article{Wing2005TransientFC,
  title={Transient Floral Change and Rapid Global Warming at the Paleocene-Eocene Boundary},
  author={Scott L. Wing and Guy J. Harrington and Francesca A. Smith and Jonathan I. Bloch and Doug M. Boyer and Katherine H. Freeman},
  journal={Science},
  year={2005},
  volume={310},
  pages={993 - 996}
}
Rapid global warming of 5° to 10°C during the Paleocene-Eocene Thermal Maximum (PETM) coincided with major turnover in vertebrate faunas, but previous studies have found little floral change. Plant fossils discovered in Wyoming, United States, show that PETM floras were a mixture of native and migrant lineages and that plant range shifts were large and rapid (occurring within 10,000 years). Floral composition and leaf shape and size suggest that climate warmed by ∼5°C during the PETM and that… 
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