Despite being rare, fossils nonetheless appear to be common elements in archeological records. Their presence is documented at some of the main Iberian archeological sites from the Paleolithic (Altamira, Parpalló, Reclau Viver, Aitzbitarte, La Garma, Rascaño, El Juyo and La Pileta) to the Metal Ages (Los Millares, Valencina, Los Castillejos, El Argar, Fuente Álamo, Vila Nova de São Pedro, etc.).