Composite Permian–Triassic lithostratigraphic section of the western Southern Alps and Permian–Jurassic of the western Eastern Alps with the known framework of radiometric ages of Permian magmatic and Middle Triassic volcaniclastic rocks (references inside). Red stars indicate the stratigraphic position of the investigated samples. Compiled from Furrer (1985), Furrer et al. (2008), Cassinis et al. (2007, 2008), Schaltegger and Brack (2007), Stockar et al. (2012) and Gretter et al. (2013). Time scale from Cohen et al. (2013; updated)