FLETCHER, T.; HIGGINS, A.; PEEL, J. A Balto-Scandian Middle Cambrian fauna from Peary Land, North Greenland. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 137, p. 118–118, 1988. DOI: 10.34194/rapggu.v137.8010. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/8010. Acesso em: 3 jul. 2024.