| details |
Sinian |
|
USSR(Krasnoyarsk Kray) |
Alushinskii,Yu.A. et al. Spores from Sinian deposits of the Enissey Ridge |
1957 |
| original |
Middle Cambrian |
Early Ordovician |
USSR(Pre-Baltic) |
Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance |
1959 |
| details |
Sinian |
|
USSR(Buryat ASSR) |
Timofeev,B.V. On the age of the sedimentary-Metamorphic Layers of eastern Transbaikal. (In: Geological Symposium #5) |
1960 |
| details |
Proterozoic |
Early Paleozoic |
USSR(Karelian ASSR) |
Timofeev,B.V. Stratigraphy and correlation of the Precambrian |
1960 |
| details |
Riphean |
Middle Devonian |
USSR(Nenets Nat.Okrug) |
Timofeev,B.V. Age of the ancient Suites of the Southwestern Timan Region. |
1964 |
| details |
Proterozoic |
|
USSR |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Nd |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Ordovician |
|
Nd |
Servais,T. An annotated bibliographical review of Ordovician acritarchs |
1997 |