BIRKELUND, T. Upper Cretaceous belemnites from West Greenland. Bulletin Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 13, p. 1–28, 1956. DOI: 10.34194/bullggu.v13.6545. Disponível em: https://geusjournals.org/index.php/bullggu/article/view/6545. Acesso em: 3 jul. 2024.