E. Blanc et al., PROPOSAL OF A STRATOTYPE FOR THE BERRIASI AN-VALANGINIAN BOUNDARY - MONTBRUN-LES-BAINS, DROME, SE FRANCE, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 318(1), 1994, pp. 101-108
A well developed section at the Berriasian-Valanginian boundary is des
cribed. This section, located near Montbrun-les-Bains (Drome, SE Franc
e) stands as a ''candidate'' for the boundary stratotype between these
two stages. As the ammonite and calpionellid successions are well pre
served, this section provides a workable ''Golden Spike'' for inter-re
gional correlations and allows the proposed tethyan zonal scheme of th
is stratigraphic interval.