About the Authors
- David M. Martill
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* E-mail: david.martill@port.ac.uk
Affiliation School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, United Kingdom
- Steven U. Vidovic
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Affiliation School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, United Kingdom
- Cindy Howells
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Affiliation Department of Natural Sciences, Amgueddfa Cymru - National Museum Wales, Cardiff, United Kingdom
- John R. Nudds
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Affiliation School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, United Kingdom
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: DMM SUV JN CH. Performed the experiments: DMM SUV JN CH. Analyzed the data: DMM SUV JN CH. Contributed reagents/materials/analysis tools: DMM SUV JN CH. Wrote the paper: DMM SUV JN CH. Cladistic analysis: SUV DMM. Stratigraphic analysis: DMM JN CH.