Bockwinkel, Jürgen, and Dieter Korn. “Ammonoids of the Middle Devonian Family Maenioceratidae in the Anti-Atlas of Morocco”. European Journal of Taxonomy 921, no. 1 (January 30, 2024): 1–35. Accessed November 26, 2024. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/2413.