The Global Boundary Stratotype Section and Point (GSSP) for the base of the Valanginian Stage, the Vergol section (Montbrun-les-Bains, Drôme, SE France) and its Standard Auxiliary Boundary Stratotype (SABS), Cañada Luenga section (Cehegín, SE Spain)

Key Points

The study establishes the GSSP for the Valanginian stage at the Vergol section in France, enhancing geological precision.
The accompanying SABS is located at the Cañada Luenga section in Spain, providing a comparative reference.
The research contributes to the global understanding of stratigraphy, aligning international geological standards.
Proposed boundaries enhance stratigraphic record interpretation, supporting future geological and paleontological research.

This paper presents the new GSSP and SABS for the Valanginian stage in specific geological sections, indicating their significance.

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Reboulet et al. (2025) studied this question.

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