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Author - title
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| details | Nd | Nd | Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains | 1954 | |
| details | Nd | Nd | Jarzen,D.M. et al. Pollen. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) | 1996 | |
| original | Permian | USSR(Kazakh SSR) | Varyukhina,L.M. Spores and pollen of the red-colored coal-bearing Permian and Triassic sediments of the northeastern part of European SSSR. | 1971 |