RT journal article T1 New challenges in archaeopalynology: Pollen analysis on Roman bivalve shells from south-western Europe and North Africa A1 López Sáez, José A. A1 Bernal Casasola, Darío A1 Pérez-Díaz, Sebastián A1 Luelmo Lautenschlaeger, Reyes A1 Díaz Rodríguez, José Juan A1 Expósito Álvarez, José Ángel A1 Jiménez Camino, Rafael A1 Portillo Sotelo, José Luis A1 Villada Paredes, Fernando A1 Vargas Girón, José Manuel A1 Cantillo Duarte, Juan Jesús A2 HistoriaGeografía y Filosofía K1 Conchopalynology K1 European flat oyster K1 Northern Africa K1 Roman times K1 Southern Iberia AB The European flat oyster (Ostrea edulis) is a native species that was consumed as a luxurious product by the Romans. In the Strait of Gibraltar area, between southwest Iberia and North Africa, numerous oyster shells have been found in Roman archaeological sites located in both, the Atlantic Ocean and the Mediterranean Sea. The origin of these oysters is unknown, as so if they were farmed or harvested in the wild and/or even imported for consumption. This study presents the results of pollen analysis of oyster shells from six archaeological sites in the Strait of Gibraltar area dated between the 1st and 6th centuries AD. This is the first time that such research is undertaken in the Iberian Peninsula and North Africa; the second worldwide for a discipline rarely known until now: conchopalynology. Our study suggests that differences observed in pollen spectra could be used to identify the origin of the consumed specimens, i.e. where they were grown or harvested, discriminating whether oyster shells originated from the Mediterranean Sea or the Atlantic Ocean coastline. PB Elsevier SN 0034-6667 YR 2023 FD 2023-03-15 LK http://hdl.handle.net/10498/29568 UL http://hdl.handle.net/10498/29568 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 09-may-2026