@Johen
Grigoryev wrote the following:
[...settlements with round plan, ceramics with roller, bone plate armours, developed metallurgy and domesticanimals.During XVI-XV centuries artefacts closely related to Seyma tradition became typical for hoards in Pannonia, France and England. Thus, these bronzes distribution marks the moving of Celts.A new wave of newcomers left F’odorovo culture sites. Some include usually this culture, together withAlakul culture, in Andronovo culture. However, all attempts to find its local roots had no success. But theseroots are in North-Western Iran and South Azerbaijan: cremation in stone boxes and cysts under mounds, clayprops for hearth, oval dishes, polished ware. Complex of metal have analogies in Circumpontic area, but first ofall, in Sumbar culture in South-Western Turkmenistan. Potteries from Central Asia have been found in someF’odorovo sites.Typical F’odorovo artefacts are known up to Dnieper river. However, a contact of F’odorovo tribes withfirst wave of newcomers is more important for us. As a result of this contact new cultures were formed, whichfix this contact and a gradual displacement of these populations to the West: Chernoozerie in Irtish basin,Cherkaskul in the Urals, Suskan and Prikazanskaia in Volga-Kama region, Pozdniakovo in Oka basin. Thesecultures combine cremation and inhumation, mounds and flat burials, bronzes of Seyma and F’odorovo types.Next moving of these tribes to the West leads to forming of Sosnitzkaia culture on the left-bank ofDnieper, Trzciniec-Komarov culture from Dnieper to Vistula and Tumulus culture in Central and NorthernEurope. These cultures reflect localisation of Balts, Slavs and Germans...]