Grabenbach Formation
AgeSantonian
PeriodSantonian
PrilithologyShale
RegionCentral Europe
CountryAustria
UnitofGosau Group
UnderliesHochmoos Formation
OverliesStreiteck Formation, Noth Formation

The Grabenbach Formation is a geologic formation in Austria. It preserves fossils dated to the Santonian of the Cretaceous period.

See also