PEEL, J.; BLAKER, M. The small shelly fossil Mongolitubulus from the Lower Cambrian of central North Greenland. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 137, p. 55–60, 1988. DOI: 10.34194/rapggu.v137.8015. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/8015. Acesso em: 3 jul. 2024.