“Molluscan Faunas and Biostratigraphy of the Marine Younger Miocene Formations in Denmark. Part II: Palaeontology”. Danmarks Geologiske Undersøgelse II. Række 92 (December 31, 1968): 1–265. Accessed October 19, 2025. https://geusjournals.org/index.php/raekke2/article/view/6883.