About the Authors

Giovanni Di Virgilio

giovanni@unsw.edu.au

Affiliation School of Biological Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia

Shawn W. Laffan

Affiliation School of Biological Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia

Malte C. Ebach

Affiliations School of Biological Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia, Australian Museum, Department of Palaeontology, Sydney, NSW, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Designed the software used in analysis: SL. Reviewed and commented upon draft versions of the manuscript: SL ME. Conceived and designed the experiments: GD SL ME. Analyzed the data: GD. Contributed reagents/materials/analysis tools: SL. Wrote the paper: GD.