Relatively rich macrofauna and microfauna of Badenian age was found in a depth of 25–32 m in a vertical cave Sváná studna (Moravian Karst). The cave was excavated downwards from a sinkhole situated at the foot of upper part of the valley (canyon). The lower part of the canyon is filled with more than 100m thick marine Badenian clays with horizons of volcanic tuffites. The stage of preservation of macrofauna and microfauna suggests very little or no transport and thus primary sedimentation in pre-Badenian cavities
