Fig. 1. A in Gastropod succession across the Early-Middle Frasnian transition in the Holy Cross Mountains, southern Poland

Fig. 1. A. Location of Holy Cross Mountains and palaeogeographic framework of the Devonian in Poland (modified after Racki 1993b: fig. 1). B. Locations of studied geological sections in the western part of the Holy Cross Mountains with division on palaeogeographical units (modified from Szulczewski 1971 and Racki 1993b). Abbreviation: Ch−Z, Chęciny−Zbrza subregion.