mostly stretched out on their backs, but often the graves were covered by stone slabs. An exception is the area of the Onon River, where crouching graves are found. Grave goods and bone finds indicate that the inhabitants lived by hunting bears, fish, elk and beavers, as well as some fish. The importance of the hunt to their culture is indicated by carvings on bones and rock faces. Their main subjects are people hunting animals. Unlike in Yakutia, pastoralism was adopted in the Baikal region before the Middle Ages; the earliest evidence comes from the chalcolithic Glazkov culture. Sedentary societies of West Siberia and the Baikal region From the Neolithic or early in the Chalcolithic, sedentary groups in which pastoralism played an important economic role developed in southwestern Siberia. The transition to the new economic system and to sedentarism was very smooth. Subsequently, it spread to the Baikal region, where the influence of northern China may also have played a role. Ceramics Through the whole Siberian prehistoric period from the Neolithic until the Iron Age, there are a very limited range of ceramic types. The vast majority of ceramic finds are round bulbous vessels, often with folded edges. In the Neolithic they mostly had concave bases, while later flat bases became more common. In the eastern part of the west Siberian forest steppe, on the Ob, Irtysh and Yenissei, decoration consisted of comb patterns, puncture rows and dimples, arranged in long series or fields (right image). In the course of the dramatic growth of the Andronovo culture in the middle Bronze Age, another type spread through the region. Examples of it are decorated with meander bands, herringbone patterns and triangles (left image). These ceramic types endured even into the Iron Age in west Siberia, yet a stark decline in decoration is observable, contemporary with the entrance of the Scythian and Hunnic Sarmatian nomads. This applies even to the nomadic cultures themselves. Art and small finds Excepting the abstract decoration of the pottery, which has been dealt with above, artistic products are found in south Siberia only in the early Bronze Age. Artefacts from the Karakol culture in Altai and the Okunev culture in the middle Yenissei include anthropomorphic motifs on stone plates and steles; the Okunev culture also produced humanoid sculptures. The art of the Samus culture of the upper Ob is related to these. In addition to humanoid sculptures