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The time spans of the so-called ditched enclosures are key to a better understanding of a type of site characterised by complex palimpsests. Several conclusions can be drawn from the 16 radiocarbon dates obtained from Ditch 4 at Marroquíes Bajos. According to Bayesian modelling, the filling process began in 2510-2310 cal BC at 2 σ and ended in 2115-1795 cal BC at 2 σ, making them the most recent ditched enclosure with depositional activity in Iberia. Comparison with the dating from other sections of Ditch 4 challenges the traditional assumption that radiocarbon samples obtained from deposits at the bottom of the ditch provide the best dates for its construction. The process by which different sections of the same Ditch 4 were filled at different times suggests that its general outline is more the result of an aggregation of segments than of a single build-up

The chronology and duration of the prehistoric ditched enclosures: the case of Marroquíes Bajos (Jaén)