About the Authors
- Juan Carlos Cisneros
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* E-mail: juan.cisneros@ufpi.edu.br
Affiliation Centro de Ciências da Natureza, Universidade Federal do Piauí, Teresina, Brazil
- Uiara Gomes Cabral
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Affiliation Departamento de Geologia e Paleontologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Frikkie de Beer
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Affiliation Nuclear Technology Division, South African Nuclear Energy Corporation, Pretoria, South Africa
- Ross Damiani
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Affiliation Staatliches Museum für Naturkunde Stuttgart, Stuttgart, Germany
- Daniel Costa Fortier
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Affiliation Departamento de Paleontologia e Estratigrafia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
Competing Interests
One of the co-authors is employed at NECSA, one of the funders of the present study. This, however, does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: JCC FdB RD. Performed the experiments: FdB. Analyzed the data: JCC UGC. Contributed reagents/materials/analysis tools: FdB. Wrote the paper: JCC UGC. Processed images: DCF.