Palacios, Teodoro, y Malgorzata Moczydlowska. 2022. «Acritarch Biostratigraphy of the Lower-Middle Cambrian Boundary in the Iberian Chains, Province of Soria, Northeastern Spain». Spanish Journal of Palaeontology 13 (3):65-82. https://doi.org/10.7203/sjp.23979.