About the Authors
- Nicole Klein
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* E-mail: nklein@uni-bonn.de
Affiliation Steinmann Institute of Geology, Mineralogy and Palaeontology, University of Bonn, Bonn, Germany
Competing Interests
The author has declared that no competing interests exist.
Author Contributions
Analyzed the data: NK. Contributed reagents/materials/analysis tools: NK. Wrote the paper: NK. Did the entire study and wrote the paper: NK.