Fig. 3From: Stratigraphy and palaeoecology of the Upper Marine Molasse (OMM) of the central Swiss Plateau a Composite lithostratigraphic key sections (from Graf et al. 2012b, plate II) of the lower part of the OMM (Lucerne Formation). Photographs depict the Safenwil-Muschelsandstein of the Muhen-Rütisgraben section (A) and a hand specimen of the Staffelbach-Grobsandstein from the type locality at Staffelbach-Böl (B). Photos J. Jost 2008/2009. b Legend of a and Fig. 5 Back to article page