Stratigraphy
Triassic
Belongs toMesozoic
Typechronostratigraphy
RankSystem
Scopeglobal
Statusformal standard
AuthorFriedrich August von Alberti
Year1834
EtymonThree distinct rock layers (tri meaning "three") that are found throughout Southern Germany
Age top (Ma)201.4
Age base (Ma)251.902
Index
T
Date changed2022-11-04
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