Geologists who are familiar with the Dolomites of South Tyrol will know the transverse sections of Langkofl and Plattkofl Dolomite given by Geh. von Mojsisovics (“Dolomit-Kiffe,” 1879, pp. 191–204). Mojsisovics describes the Schlern Dolomite of Langkofl as resting conformably upon south-dipping Lower Musehelkalk and Werfen strata, and concludes that the Schlern Dolomite here represents a dolomitic facies of all the Mid-Triassic geological horizons—viz., the Mendola, Buchenstein, Wengen and Cassian horizons. The Lower Musehelkalk and Werfen strata then bend northward with a steep flexure and, according to Mojsisovics, conformably underlie the same Mid-Triassic series of Mendola, Buchenstein, Wengen, and Cassian horizons, but the Buchenstein horizon is here present in the nodular limestone facies, and the Wengen and Cassian horizons in their tufaceous facies.