Field, Daniel J.; Benito, Juan; Chen, Albert; Jagt, John W. M.; Ksepka, Daniel T. (18 March 2020). Late Cretaceous neornithine from Europe illuminates the origins of crown birds. Nature. 579 (7799): 397–401. doi:10.1038/s41586-020-2096-0. ISSN 1476-4687.
