In this work, we make a compilation of all radiocarbonical data existing for the cardial Neolithic culture in the northwest of the Iberian Peninsula with the aim to delimit as much as possible the chronological range attributed for this period. For this reason calibration of all data is presented on the same curve, taking into account the critical process for all of them based on stratigraphical, taphonomical and radiometrical concepts. Finally, is shown that chronological range of cardial Neolithic culture could be focused on the 2nd half of the VI millennium cal. BC.