Perilli N. Lower Cretaceous nannofossil biostratigraphy of the Calpionella Limestone and the Palombini Shale in Southern Tuscany (Italy). Spanish J. Palaeontol. [Internet]. 1 de marzo de 2022 [citado 22 de febrero de 2025];12(1):1-14. Disponible en: https://pasquin.uv.es/index.php/sjpalaeontology/article/view/23990