PEEL, J. An enigmatic cap-shaped fossil from the Middle Cambrian of North Greenland. Bulletin Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 169, p. 149–155, 1994. DOI: 10.34194/bullggu.v169.6729. Disponível em: https://geusjournals.org/index.php/bullggu/article/view/6729. Acesso em: 3 jul. 2024.