Fig. 2From: Preface: The planktonic foraminifera of the JurassicGroup photo in April 2016 of the party sampling the type locality of Globuligerina helvetojurassica (Haeusler) in the Birmenstorfer Schichten, Eisengraben, Canton Aargau, Switzerland. From L to R: Cyrill Voegelin, Marc Wilmer, Felix Gradstein, Michael Knappertsbusch and Walter EtterBack to article page