Land plant extinction at the end of the Cretaceous: a quantitative analysis of the North Dakota megafloral record

@inproceedings{Wilf2004LandPE,
  title={Land plant extinction at the end of the Cretaceous: a quantitative analysis of the North Dakota megafloral record},
  author={Peter Wilf and Kirk R. Johnson},
  booktitle={Paleobiology},
  year={2004}
}
Abstract We present a quantitative analysis of megafloral turnover across the Cretaceous/Paleogene boundary (K/T) based on the most complete record, which comes from the Williston Basin in southwestern North Dakota. More than 22,000 specimens of 353 species have been recovered from 161 localities in a stratigraphic section that is continuous across and temporally calibrated to the K/T and two paleomagnetic reversals. Floral composition changes dynamically during the Cretaceous, shifts sharply… 

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