As in many other regions, the periodization of the Neolithic in the northeastern Iberian Peninsula was based upon relative dating obtained through ceramic typologies. Moreover, this prehistoric period was structured using nomenclature borrowed from the Neolithization of southern France. A total of 37 new radiocarbon dates for NE Iberia have been recently obtained with appropriate sampling criteria. These results have been used in conjunction with other reliable 14C dates in order to assess the validity of traditional classifications established through the study of ceramic typologies. The gradual improvement in the quality of sample choice and the available archaeological records allowed the selection of 187 dates obtained mostly from short-lived taxa. This has enabled the chronological boundaries to be adjusted as precisely as possible.