Lane, P.D, P.-H Larsen, and J.C Escher. “Tetinia (Trilobita) from the Late Silurian of Western North Greenland”. Rapport Grønlands Geologiske Undersøgelse 132 (December 31, 1986): 75–77. Accessed July 3, 2024. https://geusjournals.org/index.php/rapggu/article/view/7967.