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Research Article

Quantifying the Extent of North American Mammal Extinction Relative to the Pre-Anthropogenic Baseline

  • Marc A. Carrasco mail,

    carrasco@berkeley.edu

    Affiliations: Department of Integrative Biology, University of California, Berkeley, California, United States of America, Museum of Paleontology, University of California, Berkeley, California, United States of America

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  • Anthony D. Barnosky,

    Affiliations: Department of Integrative Biology, University of California, Berkeley, California, United States of America, Museum of Paleontology, University of California, Berkeley, California, United States of America, Museum of Vertebrate Zoology, University of California, Berkeley, California, United States of America

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  • Russell W. Graham

    Affiliations: Department of Geosciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America, Earth and Mineral Sciences Museum, The Pennsylvania State University, University Park, Pennsylvania, United States of America

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  • Published: December 16, 2009
  • DOI: 10.1371/journal.pone.0008331
  • Featured in PLOS Collections

About the Authors

Marc A. Carrasco, Anthony D. Barnosky
Department of Integrative Biology, University of California, Berkeley, California, United States of America
Marc A. Carrasco, Anthony D. Barnosky
Museum of Paleontology, University of California, Berkeley, California, United States of America
Anthony D. Barnosky
Museum of Vertebrate Zoology, University of California, Berkeley, California, United States of America
Russell W. Graham
Department of Geosciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
Russell W. Graham
Earth and Mineral Sciences Museum, The Pennsylvania State University, University Park, Pennsylvania, United States of America

Corresponding Author

Email: carrasco@berkeley.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MAC ADB. Performed the experiments: MAC. Analyzed the data: MAC ADB RG. Wrote the paper: MAC ADB. Contributed the FAUNMAP I and II databases: RG.