Carbonate peritidal deposits of Early Cretaceous age, widely outcropping in the carbonate platform sequence of southern Italy, carry distinct signals of cyclicity in the Milankovitch band. The depositional and diagenetic facies organization of a c. 100-m-thick sequence of Barremian age has been studied at Monte Raggeto (Monte Maggiore Mountains, near Naples), where, from a total of 60 m analysed at centimetre scale, two sedimentary modules have been recognized: 1) depositional cyclothems and 2) diagenetic cyclothems. The set of periodicities obtained (40, 72, 105 and 950 cm) can be related to the variations of the isolation constant computed for the Cretaceous; moreover the ratios between the two sets of periodicities, expressed in centimetres and in years respectively, show a very high degree of correlation with those predicted for the main orbital periods in the Cretaceous. It is proposed that the observed cyclicities indicate Barremian sea-level oscillations induced by high-frequency eustatic control under climatic forcing. -from Authors