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Geolocation
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Author - title
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Year
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details | Permian | USSR(WSL) | Lyuber,A.A. Atlas of spores and pollen of the Paleozoic deposits of Kazakhstan. | 1955 | |
original | Permian | USSR(Kazakh SSR) | Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. | 1941 | |
original | Permian | USSR(WSL) | Lyuber,A.A. Spores and pollen from the Permian coal formations of the USSR. | 1938 |