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Geolocation
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Author - title
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Year
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| details | Vendian | USSR(Urals) | Hofmann,H.J. Paleoscene #7 -Precambrian biostratigraphy | 1987 | |
| details | Late Proterozoic | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 | |
| details | Middle 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 |