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The Lower Cretaceous of Azerbaijan part of the Great Caucasus is little-known in terms of cephalopod biostratigraphy. There were no zones recognized within the Berriasian-Hauterivian interval. Here we present preliminary data on the Valanginian-Hauterivian boundary beds exposed along the slope of Kelevudagh Mt. (Guba region), which were studied during the field works in 2004(Zakharov ef al., 2006).