Figure 1

Archaeological sites in North Caucasus and in the northern Black Sea coast: a) Ransyrt 1; b) Kabardinka 2; c1) Levinsadovka (Mius peninsular); c2) Saf’janovo (Lower Don) (maps: created by QGIS 2.18.0 with open layers from OSM/Stamen, map tiles by Stamen Design, under CC BY 3.0. data by OpenStreetMap, under ODbL (maps.stamen.com); photos: Reinhold et al.7).