OXFORDIAN BIOSTRATIGRAPHY AND AMMONITE ASSOCIATIONS FROM WEST SICILY: BIOSTRATIGRAPHIC SUCCESSION OF GENUS GREGORYCERAS AND CORRELATION WITH TETHYAN PERISPHINCTID SCALE. RIPS [Internet]. 31 marzo 2004 [citato 27 luglio 2026];110(1). Disponibile su: https://test-ojs-unimi-it.archicoop.it/index.php/RIPS/article/view/6296