| details |
Riphean |
|
USSR(Kazakh SSR) |
Grigaitis,R.K. et al. New Palaeontological data regarding Precambrian deposits of Yuzhnogo Alatau, Central Kazakhstan |
1989 |
| details |
Middle Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Proterozoic |
|
USSR(Karelian ASSR) |
Makarikhin,V.V. Lower Precambrian Stromatolite associations of Karelia. (In: Proceedings of the 9th Alfred Wegener Conference-IGCP Project 157, M.Schidlowski, editor) |
1992 |
| details |
Late Riphean |
|
USSR(Penza) |
Shenfil,V.Y. et al. Stratigraphy of Riphean deposits in the Yurubchenko-Tokhoma Zon of oil accumulation in the Baikit Anteclise |
1996 |