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Berriasian  

Definition

  • In the geological timescale, the Berriasian is an age/stage of the Early/Lower Cretaceous. It is the oldest subdivision in the entire Cretaceous. It has been taken to span the time between 145.0 ± 4.0 Ma and 139.8 ± 3.0 Ma (million years ago). The Berriasian succeeds the Tithonian (part of the Jurassic) and precedes the Valanginian. The Berriasian Stage was named after the village of Berrias in the Ardèche department of France. (Adapted from: https://en.wikipedia.org/wiki/Berriasian)

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http://data.loterre.fr/ark:/67375/QX8-KF2TCSXJ-N

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