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Pottery of Posolskaya type was highlighted in the 1970s and was named by the eponymous multilayer archeological site Posolskaya (Southern Baikal region). In various embodiments, Posolskaya ceramics is

The study focuses on the analysis of Middle Neolithic burial complexes of the Baikal-Yenisey Siberia. Based on a series of reliable radiocarbon dates, their age lies within the range of 6190–5900 cal BP. It partly corresponds to the end of the hiatus in the mortuary traditions of Cis-Baikal. Features of the burial rite and funerary offerings are analyzed and compared with those of neighboring territories. One of the most frequent images in the art of the Middle Neolithic Baikal-Yenisey Siberia is that of the waterfowl, rendered as fi gurines. The common grave goods are leaf-shaped stone arrowheads, shell beads, and pendants made of animal bones and teeth. The funerary rite included the use of fi re and reddish mineral pigment, as well as disrupting the anatomical integrity of the skeletons, possibly due to partial burial (the data are tentative). Most burials of the late stage of the hiatus are evidently those of hunter-gatherers manufacturing the Ust-Belaya ceramics, which were found in certain burials. A bone arrowhead with a biconical point and fi gurines representing waterfowl suggest cultural ties with the Urals and Western Siberia; but their nature has yet to be clarifi ed, which requires large-scale AMS-dating and paleogenetic analysis.

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There are two main research areas in the Neolithic studies of the Baikal-Yenisei Siberia. One of them relates to research of mortuary traditions, another with a research of hunter-gatherer’s campsites. Ceramics is of the greatest importance for the cultural identification of campsites complexes. As a result of the Canadian-Russian project, for the Neolithic burials a clear chronological model based on AMS radiocarbon dates corrected for the freshwater reservoir effect (FRE) was created. There are several hypotheses for ceramic complexes that were proposed, but all of them predominantly were based on the radiocarbon dates obtained by the liquid scintillation counting method. This data cannot be admitted as reliable because of the limitation of this method, the big root-mean-square deviation, and the lack of data on stable carbon and nitrogen isotopes. Over the past few years, we have received in the Keck-CCAMS Group and Oxford Radiocarbon Accelerator Unit laboratories 35 new AMS-radiocarbon dates for the complexes with Neolithic ceramics. Samples taken for analyses were obtained from the 14 multilayered sites of the Angara region, Tunka valley, and Lake Baikal coast. They are represented by fragments of teeth, bones, and horns of the mammals (predominantly Cervidae and large ungulates) that accompanied pottery in cultural horizons. In five cases the carbonized organic residues (foodcrusts) from the inner surface of ceramic vessels were used as samples. In one more case, it was a strong humified soil cleaned from impurities. The technical assessment of the reliability of all dates was provided. The definitions obtained for faunal remains look the most correct. Dates obtained for foodcrust are likely significantly older, because of possible FRE influence. The geoarchaeological assessment of new dates and their correlation with the most reliable dates of previous years is provided. Based on the AMC-dating, the following chronometric frames for the Neolithic pottery of the Baikal-Yenisei Siberia are offered: Early Neolithic Net-impressed and the Khaita ceramics in the Angara region – 8539–6914 cal BP, on the Lake Baikal coast – 8160–6960 cal BP, in the Tunka valley – 7843–7681 cal BP; Ust-Belaya ceramics in the Northern Angara region – 7421–7014 cal BP (perhaps the real age is younger), in the Southern Angara region – 6730–6306 cal BP; Posolskaya ceramics on the Lake Baikal coast – 6750–6300 cal BP, in the Southern Angara region – 6730–6306 cal BP; Serovo and Dotted-comb ceramics on the Lake Baikal coast – 5841–4620 cal BP.