The Reingrabener Schiefer (other names Reingraben Shales, „Halobienschiefer“) is a lithostratigraphic unit, often described as independent geologic formation, or as a member of Lunz Formation.
[2] The Reingrabener Schiefer outcrop in the Alps and the Carpathians.
It preserves fossils dated to the Triassic period.
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