in Romanenko et al. , Stratigraphy of Precambrian and Cambrian of Central Siberia. Izdatel'stvo, Kraznoyarsk: 162. (Reference not seen, data from Bognibova, Koptev et al. , 1971, Trudy sib. nauchno-issled. Inst. Geol. Geofiz. miner. Syr'ya 111: 151).
