CALIBRATION OF PLIENSBACHIAN CALCAREOUS NANNOFOSSIL EVENTS IN TWO AMMONITE-CONTROLLED SECTIONS FROM NORTHERN SPAIN(BASQUE-CANTABRIAN AREA). RIPS [Internet]. 31 marzo 2002 [citato 28 luglio 2026];108(1). Disponibile su: https://test-ojs-unimi-it.archicoop.it/index.php/RIPS/article/view/5463