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Stratigraphy
Rhaetian
Belongs toUpper Triassic
Typechronostratigraphy
RankStage
Scopeglobal
Statusinformal standard
AuthorCarl Wilhelm Ritter von Gümbel
Year1861
EtymonRhätische Alpen or the Roman province of Rhaetium
Age top (Ma)201.4
Age base (Ma)208.5
Date changed2022-11-04
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