Archaeological evidence shows modern humans reached southern Siberia during the Initial Upper Paleolithic, with sites such as Kara-Bom dated to roughly 47,000 calibrated years before present. This broader movement set the stage for later occupations farther north and east, including the Baikal and Transbaikal regions.
People established a sustained camp at the Yana Rhinoceros Horn Site (northeastern Siberia, north of the Arctic Circle) around 32,000 cal BP. The site includes many bone/ivory artifacts and shows that humans could live and hunt successfully in very cold Arctic environments long before the Last Glacial Maximum.
Genome data from two milk teeth at Yana (dated to about 31,600 years ago) revealed a distinct population lineage called Ancient North Siberians (ANS). This finding helps explain how early northern Eurasian populations were structured and how later groups could form through mixing between western- and eastern-related lineages.
Near Lake Baikal, the Mal’ta site produced a child burial dated to about 24,000 BP (MA-1). Genetic results from this individual helped define Ancient North Eurasian (ANE) ancestry, showing long-distance connections across Eurasia and later genetic links relevant to northern Asia and the Americas.
During the Last Glacial Maximum (LGM), climate and ecosystems shifted strongly across northern Eurasia. Archaeological summaries note that the Yana cultural pattern had disappeared by about 21,000 cal BP, showing how environmental change could reduce or relocate human populations in Arctic Siberia.
The Afontova Gora site complex near Krasnoyarsk (on the Yenisey River) includes Late Upper Paleolithic human remains dated to roughly 17,000–15,000 BP. These remains show continuity of northern Eurasian populations and connections to the broader ANE-related genetic landscape after the coldest LGM phase.
At Ust-Kyakhta-3 (Transbaikal, along the Selenga River), late Upper Paleolithic finds include human tooth fragments dated to around 12,000 BCE. Ancient DNA work indicates genetic links with northeastern Siberia, suggesting wide connections across eastern Siberia around the start of the Holocene.
As the Holocene began, warmer conditions reshaped Siberian environments, supporting new patterns of mobility, hunting, and fishing. In the Baikal–Transbaikal zone, these changes helped create the ecological setting for later Middle Holocene hunter-gatherer populations and their distinctive cemetery traditions.
In Cis-Baikal, the Kitoi mortuary tradition represents an early Neolithic hunter-gatherer pattern with formal cemeteries. Large radiocarbon datasets and later re-evaluations show Kitoi is older than earlier typological models suggested, making it an important early stage in Baikal social history.
After Kitoi, researchers identify a discontinuity (a gap) when formal cemetery use in Cis-Baikal drops for several centuries. This shift matters because it suggests a major change in social practices, population organization, and/or mobility before later Neolithic traditions appear.
Later, Isakovo and Serovo mortuary traditions appear in Cis-Baikal and are treated as broadly contemporaneous in the revised chronology. These traditions show that hunter-gatherer lifeways persisted but changed over time, with new burial patterns and long-term regional interaction.
The Glazkovo mortuary tradition represents a later hunter-gatherer phase in Cis-Baikal that continues into the Early Bronze Age timeframe. It helps define an endpoint to the long arc of Baikal-region forager societies, just as wider Eurasian Bronze Age interactions and new technologies increasingly shaped nearby regions.
Peopling of the Lake Baikal region and Transbaikal hunter-gatherers (c.30,000–2,000 BP)