Non-Avian Dinosaur Eggshell Calcite Contains Ancient, Endogenous Amino Acids
bioRxiv preprint doi: https://doi.org/10.1101/2020.06.02.129999; this version posted June 3, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. NON-AVIAN DINOSAUR EGGSHELL CALCITE CONTAINS ANCIENT, ENDOGENOUS AMINO ACIDS Evan T. Saitta1, Jakob Vinther2,3, Molly K. Crisp4, Geoffrey D. Abbott5, Thomas G. Kaye6, Michael Pittman7, Ian Bull8, Ian Fletcher9, Xinqi Chen10, Matthew J. Collins11,12, Jorune Sakalauskaite13, Meaghan Mackie11,14, Federica Dal Bello15, Marc R. Dickinson4, Mark A. Stevenson5, Paul Donohoe5, Philipp R. Heck1,16,17, Beatrice Demarchi13, & Kirsty E. H. Penkman4 1Integrative Research Center, Field Museum of Natural History, Chicago, Illinois, USA 2School of Earth Sciences, University of Bristol, Bristol, UK 3School of Biological Sciences, University of Bristol, Bristol, UK 4Department of Chemistry, University of York, York, UK 5School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK 6Foundation for Scientific Advancement, Sierra Vista, Arizona, USA 7Vertebrate Palaeontology Laboratory, Department of Earth Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China 8School of Chemistry, University of Bristol, Bristol, UK 9Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey, UK 10Department of Mechanical Engineering and NUANCE Center, Northwestern University, Evanston, Illinois, USA 11The GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark 12McDonald Institute for Archaeological Research, University of Cambridge, UK 13Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy 14Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark 15Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy 16Robert A.
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