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Geolocation
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Author - title
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Year
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details | Nd | Nd | Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. | 1965 | |
details | Tremadocian | Poland | Jagielska,L. Microspores of the older Palaeozoic from Bore-Hole Uszkowce 1. | 1962 | |
original | Late Cambrian | Early Ordovician | USSR(Pre-Baltic) | Timofeev,B.V. Ancient flora of the Prebaltic Region and its stratigraphic significance | 1959 |