Schweigert, Günter, and Jürgen Härer. “New Erymid Lobsters from the Nusplingen and Usseltal Formations (Upper Jurassic) of Southwest Germany”. Geologija 63, no. 1 (June 30, 2020): 19–27. Accessed October 26, 2026. https://www.geologija-revija.si/index.php/geologija/article/view/1769.