SÁ, Artur A.; PEREIRA, Sofia; RÁBANO, Isabel; GUTIERREZ-MARCO, Juan Carlos. Giant trilobites and Other Middle Ordovician Invertebrate Fossils from the Arouca UNESCO Global Geopark, Portugal. Geoconservation Research, [S. l.], v. 4, n. 1, 2021. DOI: 10.30486/gcr.2021.1913689.1057. Disponível em: https://oiccpress.com/gcr/article/view/2759. Acesso em: 12 may. 2026.