About the Authors
- Patricia G. Weaver
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* E-mail: trish.weaver@ncdenr.gov
Affiliation Research and Collections, North Carolina Museum of Natural Sciences, Raleigh, North Carolina, United States of America
- Larisa A. Doguzhaeva
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Affiliation Department of Palaeozoology, Swedish Museum of Natural History, Stockholm, Sweden
- Daniel R. Lawver
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Affiliation Department of Earth Sciences, Montana State University, Bozeman, Montana, United States of America
- R. Christopher Tacker
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Affiliation Research and Collections, North Carolina Museum of Natural Sciences, Raleigh, North Carolina, United States of America
- Charles N. Ciampaglio
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Affiliation Earth and Environmental Sciences, Wright State University, Celina, Ohio, United States of America
- Jon M. Crate
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Affiliation Analytical Chemistry, FAI Materials Testing Lab Incorporated, Marietta, Georgia, United States of America
- Wenxia Zheng
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Affiliation Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, United States of America
Competing Interests
The authors have the following competing interest: JC is an employee of FAI Materials Testing Laboratory. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: PW LD DL RT CC JC WZ. Performed the experiments: PW LD DL RT JC WZ. Analyzed the data: PW LD DL RT CC JC WZ. Contributed reagents/materials/analysis tools: PW LD DL RT CC JC WZ. Wrote the paper: PW LD DL RT CC JC WZ.