Settlement, barrow cemeteries, and flat-grave cemeteries near Odessa, in the Ukraine - a regional variant of the Eneolithic Cucuteni-Tripolye culture. It is the type site of a copper-using culture with painted pottery and with the kurgan burial of the steppe zone. It is thought to date c 2600-2100 BC. One barrow cemetery at Usatovo was one of the richest in the steppe zone and lay next to a stone-built settlement. Crouched inhumations as primary burials were often accompanied by many secondary burials in cists or pits. Widespread contacts are documented by the presence of Baltic amber and Anatolian silver and antimony, and the existence of corbel-vaulted tombs suggest Aegean affinities.