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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 | Middle Westphalian D | Kentucky | Hower,J.C. et al. Petrology and palynology of the No.5 Block Coal Bed, Northeastern Kentucky | 1994 | |
| details | Devonian | USSR(Ukrainian SSR) | Medvedeva,A.M. Palynological investigation of Petroleum | 1978 |