An overview of the main traits of the mosasauroid remains found in Colombia is presented. Three stratigraphic levels have been identified as mosasauroid-bearing beds. In adition to the already known Turonian material, new fossils found in Coniacian and Campanian rocks are preliminary described. The taphonomic and geological features of the findings, as well as the differences in age and anatomical morphology of the new Colombian mosasauroid remains open new perspectives for the analysis of processes of adaptation to marine life that occurred in mosasaurs during the Cretaceous.

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