FORTEY, R.; PEEL, J. Stratigraphy and hystricurid trilobites of the Christian Elv Formation (Lower Ordovician) of western North Greenland. Rapport Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 144, p. 5–15, 1989. DOI: 10.34194/rapggu.v144.8058. Disponível em: https://geusjournals.org/index.php/rapggu/article/view/8058. Acesso em: 18 may. 2024.