Abstract
Lower Campanian Pachydiscus (Pachydiscus) launayi (De Grossouvre) was found for the first time above the layer of soap (bentonite) clays widely known in the literature in an old quarry in the outskirts of the Kudrino village in the southwestern Crimea. This find expands the understanding of the distribution of this species and clarifies the biostratigraphic position of the soap clay layer.
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