Romero, Sara, y Juan Carlos Gutiérrez-Marco. «Middle Ordovician Trilobites from the Castillejo Formation, Eastern Iberian Range (NE Spain): Taxonomic Reappraisal, Biostratigraphy, and Correlation». Spanish Journal of Palaeontology 38, no. 2 (diciembre 20, 2023): 137–172. Accedido febrero 22, 2025. https://pasquin.uv.es/index.php/sjpalaeontology/article/view/27098.