Open access The Arrival of Siberian Ancestry Connecting the Eastern Baltic to Uralic Speakers further East, by Saag et al. Current Biology (2019).
In this study, we present new genomic data from Estonian Late Bronze Age stone-cist graves (1200–400 BC) (EstBA) and Pre-Roman Iron Age tarand cemeteries (800/500 BC–50 AD) (EstIA). The cultural background of stone-cist graves indicates strong connections both to the west and the east [20, 21]. The Iron Age (IA) tarands have been proposed to mirror “houses of the dead” found among Uralic peoples of the Volga-Kama region .
(…) The 33 individuals included
… Read the rest “Baltic Finns in the Bronze Age, of hg. R1a-Z283 and Corded Ware ancestry”
Demographic data and figures derived from Estonian Iron Age graves, by Raili Allmäe, Papers on Anthropology (2018) 27(2).
Interesting excerpts (emphasis mine):
Inhumation and cremation burials were both common in Iron Age Estonia; however, the pattern which burials were prevalent has regional as well temporal peculiarities. In Estonia, cremation burials appear in the Late Bronze Age (1100–500 BC), for example, in stone-cist graves and ship graves, although inhumation is still characteristic of the period [28, 18]. Cremation burials have occasionally been found beneath the Late Bronze Age cists and the Early Iron Age (500 BC–450 AD) tarand graves
… Read the rest “Iron Age bottleneck of the Proto-Fennic population in Estonia”