Neolithic culture of the period 4100–3700 bc in northeast Bulgaria and the lower Danube Valley of southeast Romania. It forms part of a group of related cultures, including the Maritsa and Vadastra cultures, which are regarded as contemporary with Level V at Karanovo. Settle‐ ments of this period are bigger than those of the preceding Dudeşi and Vadastra I cultures, some approaching small tells. Copper artefacts appear for the first time in late phases and there is evidence of trade networks through to the Black Sea represented by imports of spondylus shell and Prut Valley flint. The pottery is decorated with geometric designs filled with white paste.