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Geolocation
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Author - title
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Year
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| details | Tremadocian | USSR | Timofeev,B.V. Late Proterozoic and Early Paleozoic phytoplankton. (In: Report from the 1st All-Union Palynological Conference) | 1965 | |
| details | Miocene | USSR(Kamchatka Oblast) | Fradkina,A.F. A palynological study of Neogene flora from some areas in the northeast of the USSR. (In: Beringia in the Cenozoic Era. V.L.Kontrimavichus, editor) | 1985 |