This article is the first publication to analyze faunal remains from early complexes (layers VII and VI) at the multilayer settlement of Sagan-Zaba II, situated on the western shore of Lake Baikal. We discuss species composition of fauna from the site as well as associated radiocarbon dates, age and sex designations, spatial distribution, and their overall selection as it relates to site seasonality. We address the previously-defi ned potential offset between uncalibrated dates from remains of ungulates and seals at the site, relating to the problem of “old” carbon in Lake Baikal. For layer VII, this offset is 682 years on average, and for layer VI it is 509 years. Taking the offset from nerpa bones into account, layers VII and VI now appear to date to the period between 9120 and 7880 cal BP. An analysis of faunal materials from the early complexes of the Sagan-Zaba II settlement indicates that inhabitants of this site hunted nerpa seals, ungulates, and other mammals as well as birds and fi sh, demonstrating a complex use of natural resources. Most likely, sites featured short-term, seasonal occupations, as indicated by the distribution of hearths and other materials, the thickness of hearth features, and the absence of specialized production areas. Results of an analysis of dentine layers from cross-sections of nerpa teeth as well as the presence of faunal bones that are only available during the hotter months of the year in the Cis-Baikal region, are consistent with a model of spring and summer site use.