About the Authors

Rui Castanhinha, Claudine Chaouiya
Instituto Gulbenkian de Ciência, Oeiras, Portugal

Rui Castanhinha, Ricardo Araújo, Rui M. S. Martins
Museu da Lourinhã, Lourinhã, Portugal

Ricardo Araújo
Huffington Department of Earth Sciences, Southern Methodist University, Dallas, Texas, United States of America

Luís C. Júnior
Museu Nacional de Geologia, Maputo, Moçambique

Kenneth D. Angielczyk
Integrative Research Center, Field Museum of Natural History, Chicago, Illinois, United States of America

Gabriel G. Martins
Centro de Biologia Ambiental, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal

Rui M. S. Martins
Campus Tecnológico e Nuclear, Instituto Superior Técnico, Bobadela, Portugal

Rui M. S. Martins
Centro de Investigação em Materiais, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal

Rui M. S. Martins
Centro de Física Nuclear da Universidade de Lisboa, Lisboa, Portugal

Felix Beckmann, Fabian Wilde
Helmholtz-Zentrum Geesthacht, Geesthacht, Germany

Corresponding Author

rcastanhinha@gmail.com

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RC RA LCJ KDA GGM RMSM CC. Performed the experiments: RC KDA GGM RMSM CC FB FW. Analyzed the data: RC RA KDA GGM RMSM CC. Contributed reagents/materials/analysis tools: RC RA LCJ KDA GGM RMSM CC FB FW. Wrote the paper: RC RA KDA GGM RMSM. Participated in the field work: RC RA LCJ.