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Geolocation
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Author - title
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Year
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| details | Silurian | USA | Cramer,F.H. et al. North American Silurian palynofacies and their spatial arrangement. | 1972 | |
| details | Late Llandoverian | Wenlockian | USSR(Moscow) | Aristova,K.E. Palynological research of Silurian deposits in the Moscow Basin. | 1976 |