Ammonite zonation for the Lower Cretaceous of the Mediterranean Rgion; Basis for the stratigraphic correlations within IGCP-Project 262.

Resumen

This report is the synthesis of the discussions held during the 2nd Workshop of the Lower Cretaceous Cephalopod Team of IGCP-Project 262: Tethyan Cretaceous Correlation (Mula, SE Spain, July 2-5, 1992). It presents a new proposition of zonal scheme for the Lower Cretaceous of the Mediterranean Region and justifications about the choice of the index-species for some biostratigraphical units.