Fig. 2 in Gastropod succession across the Early-Middle Frasnian transition in the Holy Cross Mountains, southern Poland

Fig. 2. Studied Devonian sections, with subdivision on sets (letters mean sets with gastropods) against stratigraphic−facies cross−section of the Late Givetian and Frasnian strata of the Holy Cross Mountains (after Racki 1993b, modified) as well as bioevents of Frasnian gastropod fauna study; n, number of taxa; BS, biotic stagnation; El, extraregional immigration; En, endemics; Ex, extinction; LII, limited intraregional imigration; as., association; am., assemblage (see Racki 1993a, b). Regional depositional cycles after Racki (1993b); global events after House (2002).