NON-AVIAN DINOSAUR EGGSHELL CALCITE CONTAINS ANCIENT, ENDOGENOUS AMINO ACIDS
Evan T. Saitta, Jakob Vinther, Molly K. Crisp, Geoffrey D. Abbott, Thomas G. Kaye, Michael Pittman, Ian Bull, Ian Fletcher, Xinqi Chen, Matthew J. Collins, Jorune Sakalauskaite, Meaghan Mackie, Federica Dal Bello, Marc R. Dickinson, Mark A. Stevenson, Paul Donohoe, Philipp R. Heck, Beatrice Demarchi, Kirsty E. H. Penkman
bioRxiv 2020.06.02.129999; doi: https://doi.org/10.1101/2020.06.02.129999