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- Published online April 6, 2020.
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© 2020 American Journal of Science
Author Information
- Donald E. Canfield*,†,
- Andrew H. Knoll**,
- Simon W. Poulton***,
- Guy M. Narbonne§ and
- Gregory R. Dunning§§
- * Department of Biology and Nordcee, University of Southern Denmark, 5230 Odense M, Denmark
- ** Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
- *** School of Earth and Environment, University of Leeds, Leeds LS2 9JT, United Kingdom
- § Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Ontario, K7L 3N6, Canada
- §§ Department of Earth Sciences, Memorial University of Newfoundland, St John's, Newfoundland, Canada A1B 3X5
- ↵† Corresponding author: Dec{at}biology.sdu.dk