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The neotectonic development of western Anatolia was characterized by the formation of numerous graben-type basins, which have been well documented by general mapping, although the cause and timing of the Neogene regional tectonic extension remain controversial. Previous interpretations of the origin and evolution of these Neogene basins were based mainly on regional-scale tectonic inferences, rather than detailed basin-fill analysis. The present study of the terrestrial intramontane Çameli Basin in the western Taurides combines detailed facies analysis with biostratigraphic dating (mammalian and molluscan fossils) and documents three pulses of crustal extension that are reflected in changes in the palaeogeography and sedimentary architecture of the basin. Development of the Çameli graben commenced in the Vallesian time (early Tortonian), and is marked by alluvial-fan, fluvial and lacustrine …