Evolution of the genus Staufenia in the Upper Aalenian of the Swabian Alb. Staufenia staufensis originates from the Plettenberg hill (Dietze et al. 2017, pl. 4, fig. 7), all other ammonites from the Wochenberg hill. The staufensis biohorizon is not present at the Wochenberg hill due to Quaternary erosion. Scale bar: 3 cm.

 
 
  Part of: Dietze V, Hofbauer A, Rieber H, Wannenmacher N, Schweigert G (2022) Ammonites and stratigraphy of the Achdorf Formation (Braunjura Group; Aalenian) at the Wochenberg hill near Schömberg-Schörzingen (W Swabian Alb, SW Germany). Zitteliana 96: 69-101. https://doi.org/10.3897/zitteliana.96.82835