A characteristic ("ethnographic") element of the Pyany Bor culture are rectangular belt mounts decorated with two parallel rows of triangular impressions. Despite their "typical" nature, a developed chronology for them currently lacks. Literature contains an opinion (S.N. Korenyuk, I.O. Vaskul) proposing an early – pre-Pyany Bor – Ananyino – dating for their emergence. The paper examines the authors' arguments and discusses the assemblages cited to support the early date. Currently, there are no convincing proofs to date these mounts to the Ananyino period. The cited finds originate either from chance finds or from assemblages lacking datable artifacts. The mounts can only be attributed to the Pyany Bor period. However, the appearance of decoration in the form of rows of triangles – though not on mounts – may be an earlier technique. Mounts where two rows of zigzags are used as the decorative element are definitely datable to the Ananyino period.
A. A. Krasnopeorov (Thu,) studied this question.