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Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Paola Flórez performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables.

Paula Andrea Zapata-Ramírez conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Carlos Jaramillo contributed reagents/materials/analysis tools, reviewed drafts of the paper, financial support, Geological settings.

James S Klaus analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

Paleontological Smithsonian Tropical Research database

http:// biogeodb.stri.si.edu/jaramillo/fossildb

Funding

This study was supported by Colciencias Grant Agreement No. 7277 569 33195, contract 2013-0217. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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