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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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| original | Westphalian | USSR(Ukrainian SSR) | Lyuber,A.A. et al. Classification and stratigraphic value of spores of some Carboniferous Coal deposits in the USSR. | 1938 | |
| details | Zechstein | Poland | Orlowska-Zwolinska,T. Flora of the Permian-Microflora of the Zechstein | 1972 |