Bechtel, Achim, Doris Groß, and Andreas Lücke. “Biomarker and Carbon Isotope Data from the 1st Mid-Polish and 2nd Lusatian Lignite Seams of the Konin Basin (Poland) Re-Evaluated to Reconstruct Vegetation Dynamics During the Miocene Climatic Optimum”. Geologos 32 (July 14, 2026). Accessed July 15, 2026. https://pressto.amu.edu.pl/index.php/logos/article/view/55562.