Fig. 8
From: The Staffelegg Formation: a new stratigraphic scheme for the Early Jurassic of northern Switzerland
Detailed section of the Early Jurassic strata at Hof Schönau (Olsberg/AG), temporary exposure. Ammonites have been collected by T. Bolinger (Olsberg/AG; CTB). α = see Pratje (1922); β = see Schlatter (1976); γ = phosphoritic, Gryphaea-bearing, macrofossil-rich encrinite, highly conglomeratic in parts (packstone after Dunham 1962); δ = reworked?; ε = loosely collected Schlotheimia sp. (NMB J 29358; det. Wiedenmayer 1980), compare the biostratigraphic range of the genus Schlotheimia in Fig. 7