The Working Group proposes only one modification to its current zonation of the Mediterranean Region, the addition of a cristatum Subzone in the lower part of the inflatum Zone (upper Albian). But in the light of newly published research it highlights levels/areas where further work is required, especially to resolve conflicting zonal schemes. It also proposes a 'Tethyan Province' zonation for the middle Albian. Alternative correlations for the Boreal/Tethyan Valanginian to Barremian stages are tabulated, one based on ammonite evidence alone, the other with additional biostratigraphical data coupled with sequence stratigraphy and magnetostratigraphy.

Scripta Geologica. Special Issue

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Naturalis journals & series

Rawson, P. F., Hoedemaeker, P. J., Aguirre-Urreta, M. B., Avram, E., Ettachfini, M., Kelly, S. R. A., … Vasicek, Z. (1999). [Proceedings of the 4th International Workshop of the Lower Cretaceous Cephalopod Team (IGCP-Project 362) / Peter F. Rawson and Philip J. Hoedemaeker (editors)]: Report on the 4th international workshop of the Lower Cretaceous Cephalopod Team (IGCP-Project 362). Scripta Geologica. Special Issue, 3(1), 3–13.