López Cabrera, María I, y Eduardo B Olivero. «Ophiomorpha Irregulaire and Associated Trace Fossils from the Upper Cretaceous of Patagonia, Argentina: Palaeogeographical and Ethological Significance». Spanish Journal of Palaeontology 29, no. 1 (julio 8, 2020): 33–44. Accedido noviembre 10, 2024. https://pasquin.uv.es/index.php/sjpalaeontology/article/view/17486.