Wesselingh , Frank P., Tom Meijer, Ronald Harting, Marcel Bakker, and Freek S. Busschers. “New Marine Warm-Temperate Molluscan Assemblage Demonstrates Warm Conditions During the Middle Pleistocene of the North Sea Basin”. Netherlands Journal of Geosciences (February 7, 2023). Accessed March 31, 2026. https://njgjournal.nl/index.php/njg/article/view/11346.