Fig. 3

Lithostratigraphic log of the Oxfordian Birmenstorfer Schichten, Eisengraben Section, Canton Aargau, Switzerland (taken from figure 4 in Oesterle 1968). Also, shown is the bed-by-bed position of the samples taken by Oesterle (1968). These sample numbers correspond bed by bed to those taken by Knappertsbusch and Gradstein in 2016 for study of ‘Globigerina’ helvetojurassica Haeusler. From bed 4 Gradstein took two samples called 4 mid and 4 top