Pujalte, V., C. Diéguez, y J. M. Hernández. «A Fern-Bennettitalean Floral Assemblage in Tithonian- Berriasian Travertine Deposits (Aguilar Formation, Burgos- Palencia, N Spain) and Its Palaeoclimatic and Vegetational Implications». Journal of Iberian Geology 35, no. 2 (octubre 30, 2009): 127–140. Accedido noviembre 8, 2024. https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0909220127A.