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Geolocation
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Author - title
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Year
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| details | Nd | USSR(Yakut ASSR) | Vinogradov,V.A. et al. Identification of Permian sediments on Bolshoy Lyakhov Island. | 1975 | |
| details | Early Cambrian | USSR(Pre-Baltic) | Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic | 1975 | |
| details | Early Cambrian | USSR(Pre-Baltic) | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |