Koch, B.E. “Coryphoid Palm Fruits and Seeds from the Danian of Nûgssuaq, West Greenland”. Bulletin Grønlands Geologiske Undersøgelse 99 (June 26, 1972): 1–38. Accessed July 3, 2024. https://geusjournals.org/index.php/bullggu/article/view/6640.