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To
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Geolocation
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Author - title
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Year
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| details | Middle Ordovician | USSR(Yaroslav) | Zharkova,M.F. et al. Age of the Yaroslavl' Series in the Lyubim District | 1967 | |
| details | Caradocian | Poland | Jagielska,L. Preliminary note on microspores from the Ordovician of Brzeziny and Zbrza in the Swiety Krzyz Mts. | 1962 | |
| details | Early Devonian | USSR(Ukrainian SSR) | Partyka,I.I. Plant microfossils of the Tiverian Stage of the Southwestern Margin of the Russian Platform. | 1971 |