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Stratigraphy
Aptian
Belongs toLower Cretaceous
Typechronostratigraphy
RankStage
Scopeglobal
Statusinformal standard
AuthorAlcide d`Orbigny
Year1840
EtymonVillage of Apt, Vaucluse province, southeast France.
Age top (Ma)113
Age base (Ma)121.4
Date changed2022-11-04
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