PICKERILL, R.; PEEL, J. Gordia nodosa isp nov and other trace fossils from the Cass Fjord Formation (Cambrian) of North Greenland. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 150, p. 15–28, 1991. DOI: 10.34194/rapggu.v150.8136. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/8136. Acesso em: 3 jul. 2024.