Type Region
Layer Asselian
Layer bed 22, Sarabyl'skaya Svita
Layer bed 26, Sarabyl'skaya Svita
Layer bed 30, Sarabyl'skaya Svita
Layer bed 45, Maloikskaya Svita
Layer bed 56, Maloikskaya Svita
Layer bed 64, Kondurovskaya Svita
Layer bed 72, Kondurovskaya Svita