This is the second in a series of two papers dedicated to the examination of Neolithic mortuary variation within the Little Sea microregion of Cis-Baikal, Eastern Siberia. The first study, appearing also in this special issue, reviewed the Early Neolithic (EN) mortuary material (Goriunova et al., 2020), whereas the goal of this paper is to summarize the available archaeological material referred to as the Serovo mortuary tradition of the Little Sea area (henceforth, the Little Sea–Serovo). The focus will be on the identification of its defining characteristics, comparison with other Serovo microregional groups, assessment of its chronological parameters as well as comparison with the EN mortuary protocol.