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Stratigraphy
Maastrichtian
Belongs toUpper Cretaceous
Typechronostratigraphy
RankStage
Scopeglobal
Statusformal standard
AuthorDumont
Year1849
EtymonTown of Maastricht, southern Netherlands, near the border with Belgium
Age top (Ma)66
Age base (Ma)72.1
Date changed2022-11-04
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