“Notes on the Trilobite Faunas of the Henson Gletscher Formation (Lower and Middle Cambrian) of Central North Greenland”. Rapport Grønlands Geologiske Undersøgelse 132 (December 31, 1986): 65–73. Accessed October 31, 2025. https://geusjournals.org/index.php/rapggu/article/view/7966.