Uchman, A. y Álvaro, J.J. 2021. Non-marine invertebrate trace fossils from the Tertiary Calatayud- Teruel Basin, NE Spain. Reply. Spanish Journal of Palaeontology. 16, 1 (sep. 2021), 167–168. DOI:https://doi.org/10.7203/sjp.16.1.21595.