The small Triesenberg Slice Complex (formerly «Liechtenstein Flysch») is a Lower Penninic tectonic unit occuring in Liechtenstein and located at the base of the Austroalpine units, the Arosa Nappe or the Falknis Nappe. It comprises two slices, the northern one composed of the Vaduz Flysch (Late Cretaceous), more or less equivalent to that of the Oberstdorf Nappe, and the southern one of the Triesen Flysch (Late Cretaceous to Paleogene), which has an affinity with the Prättigau Flysch.

Glaukonithaltiger Kieselkalk und Tonstein, in Vaduzer Flysch und Triesen-Flysch unterteilt.