CONODONT BIOSTRATIGRAPHY OF UPPER DEVONIAN TEPHRA BEARING DEPOSITS IN THE İSTANBUL-ZONGULDAK TERRANE, NW TURKEY: INSIGHTS ON THE KELLWASSER EVENTS. (2024). RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , 130(3). https://doi.org/10.54103/2039-4942/20152