Pujalte, V., Diéguez, C. and Hernández, J. M. (2009): “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(2), pp. 127–140. Available at: https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0909220127A (Accessed: 8 November 2024).