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Author - title
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Year
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| details | Dogger | USSR(Pre-Baltic) | Thiergart,F. The stratigraphic value of Mesozoic pollen and spores | 1949 | |
| details | Late Cretaceous | Paleocene | Germany | Thiergart,F. Micropaleontological information. 1. Dicotyledonous pollen of the Late Mesozoic and its systematic position | 1942 |