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Author - title
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Year
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| details | Nd | Nd | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 | 1958 | |
| details | Early Permian | USSR(Siberia) | Sivertseva,I.A. On Permian vegetation of the Soviet Union. (In: On the Methods in Paleopalynological Studies.) | 1966 | |
| details | Permian | USSR(Kazakh SSR) | Voitsel,Z.A. et al. Spore and pollen complexes of Permian deposits of Pavlodarskogo Priirtysh'ya | 1958 |