link
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From
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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 | Carboniferous | Michigan | Bartlett,H.H. Fossils of the Carboniferous Coal Pebbles of the Glacial Drift at Ann Arbor. | 1928 | |
details | Kungurian | USSR(Urals) | Abramova,S.A. et al. Palynological investigations of Upper Kama's potassium deposits, underlying Kungurian Salt Layers. | 1960 |