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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 | England(Yorkshire) | Smith,A.H.V. The sequence of microspore assemblages associated with the occurrence of Crassidurite in Coal Seams of Yorkshire. | 1957 | |
| details | Carboniferous | Czechoslovakia | Havlena,V. Plant spores of the Carboniferous Cannel Coal Pebbles from the Carpathian Cretaceous. | 1957 |