Barrémien
The Barrémien or Barrêmien is the stratigraphic fourth stage Crétacé inferior. It extends from -130 ± 1,5 with -125 ± 1 My.
It succeeds the Hauterivien and precedes the Aptien.
Origin of name
Barrêmien draws its name from the common Frenchwoman of Barrême, in the Alp-of-High-Provence.
Definition
The base of Barrêmien is determined by the first appearance of the Ammonite S Spitidiscus hugii and Spitidiscus vandeckii . The top is determined by the beginning of the Chronozone magnetic M0r.
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