Stratigraphy and ichthyofauna of the Upper Emsian-Eifelian deposits in the Bykhov 1 and Korma 1 borehole sequences in the east of Belarus

The paper presents the results of a palaeoichthyological study of core samples from the Bykhov 1 and Korma 1 boreholes drilled in eastern Belarus. Based on the ichthyofaunal, lithological and geophysical data, a detailed stratigraphic division of the Upper Emsian-Eifelian deposits exposed in the studied boreholes has been performed. Their detailed description is provided. Vertebrate evidences were used to compare these deposits with the similar age formations developed within the adjacent territories of Ukraine, Russia and the Baltic States. The ichthyofauna data were used to clarify the stratigraphic distribution of some taxa in the Upper Emsian-Eifelian deposits of Belarus, to supplement their systematic composition within the studied territory, and also to complement the palaeontological characteristics of the regional stratigraphic units of the actual Stratigraphic Chart of the Devonian Deposits of Belarus (2010). The presented results should be taken into account in the future when performing large-scale geological surveys within the studied area.