1.
Barrón, E., Sánchez-moya, Y., and Sopeña, A. 2009. New palynological and isotopic data for the Triassic of the western Cantabrian Mountains (Spain). Journal of Iberian Geology 35, 1, 35–45. Retrieved December 7, 2025 from https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0909120035A