López Cabrera, María I, y Eduardo B Olivero. 2020. «Ophiomorpha Irregulaire and Associated Trace Fossils from the Upper Cretaceous of Patagonia, Argentina: Palaeogeographical and Ethological Significance». Spanish Journal of Palaeontology 29 (1):33-44. https://doi.org/10.7203/sjp.29.1.17486.