RT Journal Article T1 Icnofacies del Neógeno superior de la Cuenca del Guadalquivir (área de Lepe-Ayamonte, Huelva, España) T1 Upper Neogene Ichnofacies of the Guadalquivir Basin (Lepe-Ayamonte area, Huelva, Spain) A1 Muñiz Guinea, Fernando A1 Mayoral Alfaro, Eduardo A1 Gámez Vintaned, José Antonio AB Thè marine arid lacustrine Upper Neogene sediments in the Southwestern sector of the Guadalquivir Basin (Lepe-Ayamonte area, Huelva, Spain), are basically characterized by four distinte ichnofacies: Cruziana, Skolithos, mixed Cruziana-Skolithos, Gnathichnus and GlóssifungiièS ichrìófacies. The stages of ichnofacial evolution provides several palaeòenviromentàl keys for these materials, as bathimetry, hydrodihamic energy, salinity and type of substratum PB Sociedad Geológica de España YR 1997 FD 1997 LK http://hdl.handle.net/10272/10313 UL http://hdl.handle.net/10272/10313 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026