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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 | Early Devonian | USSR(Moldavian SSR) | Shepeleva,E.D. Spores from the Lower Devonian Beds of the Podol Ian Dniester River area. (In: Material on regional stratigraphy of the USSR) | 1963 | |
| details | Wenlockian | England(Shropshire) | Downie,C. 'Hystrichosheres', (acritarchs), and spores of the Wenlock Shales, (Silurian), of Wenlock, England. | 1963 | |
| details | Givetian | USSR(Russian Platform) | Kao,L. et al. Early and Middle Devonian spore assemblages from Tushan and Duyun of Kweichow and their stratigraphical significane. | 1975 |