Fig. 2 in The tarphyceratid cephalopod Trocholites in the Middle-Upper Ordovician of the Prague Basin -the Baltican element in peri-Gondwana

Fig. 2. Correlation of the Dobrotivá and Zahořany formations (greyed-out levels) with global and Ibero-Bohemian chronostratigraphic units, and the herein discussed occurrence of Trocholites. Modified from Kraft et al. (2015), Fatka and Budil (2022), and Kraft et al. (2023).