Devonian conodonts from the Fo a–Pra a Paleozoic complex (Durmitor Nappe, southeastern Bosnia and Herzegovina)

Conodont study of the Crna Rijeka borehole CR-17, positioned in the frontal part of the Durmitor Nappe (Fo a – Pra a Paleozoic complex, SE Bosnia and Herzegovina) is presented. The obtained fauna indicates an Early-Middle Devonian age and due to poor preservation an identification at a generic level is possible only. The recovered conodont elements have a high Color Alteration Index (CAI = 6,5–7) indicating a degree of metamorphism corresponding to a temperature interval from 440 °C to 720 °C.