Before the 12th century (a provisional research frame)
This period does not search for a single ancestor of the Buryats. Archaeological cultures, migrations, ecological practices and later genealogical traditions are treated as different kinds of evidence.
The frame before the 12th century is provisional: archaeological cultures, migrations and later genealogical traditions are read as different kinds of evidence, not as one line of descent.
Buryat communities form from diverse clans — no single common ancestor
ConfirmedBuryat history verification core (reviewed 16 Jul 2026)
“Buryats formed from diverse clans (Bulagat, Ekhirit, Khori-Tümed, Khongodor) and assimilated Oirats, Khalkha Mongols and Tungus; no single "ancestral" tribe can be singled out.”
Further reading: Oirats and Tribes of Bargudzhin-oron2 catalog entriesPeriod tags: Pre-Mongol period
An open-access article on the Oirats and the tribes of Bargudzhin-Tokum — one of the few available materials regarding the pre-Mongol and Mongol prehistory of Buryat ethnogenesis.
In-depth study of the Qurïqan (Kuri) and their role in Buryat ethnogenesis — a strong source on the pre-Mongol period, despite paywalled access to the full text.