Villa, Elisa, Oscar Merino-Tomé, y Jaime Martín-Llaneza. 2018. «Fusulines from the Central Asturian Coal? Eld (Pennsylvanian, Cantabrian Zone, Spain) and Their Signi? Cance for Biostratigraphic Correlation». Spanish Journal of Palaeontology 33 (1):231-60. https://doi.org/10.7203/sjp.33.1.13252.