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Research Article

Middle Ear Cavity Morphology Is Consistent with an Aquatic Origin for Testudines

  • Katie L. Willis mail,

    kwillis@umd.edu

    Affiliation: Department of Biology, University of Maryland, College Park, Maryland, United States of America

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  • Jakob Christensen-Dalsgaard,

    Affiliation: Institute of Biology, University of Southern Denmark, Odense M, Denmark

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  • Darlene R. Ketten,

    Affiliation: Department of Otology and Laryngology, Harvard Medical School, Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America

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  • Catherine E. Carr

    Affiliation: Department of Biology, University of Maryland, College Park, Maryland, United States of America

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  • Published: January 14, 2013
  • DOI: 10.1371/journal.pone.0054086

About the Authors

Katie L. Willis, Catherine E. Carr
Department of Biology, University of Maryland, College Park, Maryland, United States of America
Jakob Christensen-Dalsgaard
Institute of Biology, University of Southern Denmark, Odense M, Denmark
Darlene R. Ketten
Department of Otology and Laryngology, Harvard Medical School, Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America

Corresponding Author

Email: kwillis@umd.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KLW. Performed the experiments: KLW. Analyzed the data: KLW JCD. Contributed reagents/materials/analysis tools: KLW JCD DRK CEC. Wrote the paper: KLW.