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Stratigraphy
Eifelian
Belongs toMiddle Devonian
Typechronostratigraphy
RankStage
Scopeglobal
Statusformal standard
AuthorZiegler & Klapper
Year1985
EtymonEifel hills, western Germany
Age top (Ma)387.7
Age base (Ma)393.3
Index
d4
Date added2003-04-03
Date changed2022-11-04
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