Fig. 3From: Record of a dense succession of drowning phases in the Alpstein mountains, northeastern Switzerland: Part II—the Lower Cretaceous Schrattenkalk Formation (late Barremian)Conflictual chronostratigraphic datings of the Schrattenkalk Formation in the Helvetic domain based on microfossils (Bonvallet et al., 2019; Clavel et al., 2014; Schroeder et al., 2007), few ammonites (Bodin et al., 2006a; Föllmi and Gainon, 2008) and correlations based on sequence stratigraphic interpretations (Bodin et al., 2006a, b; Bonvallet et al., 2019; Godet et al., 2013)Back to article page