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Author - title
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Year
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| details | Kazanian | Tatarian | USSR(Yakut ASSR) | Dibner,A.F. A comparison of bearing sections of the Permian sediments in the Leno-Katanski Depression according to palynological data. | 1963 |
| details | Kazanian | USSR(Urals) | Hart,G.F. The biostratigraphy of Permian palynofloras. | 1970 | |
| details | Kazanian | USSR(Yakut ASSR) | Hart,G.F. The biostratigraphy of Permian palynofloras. | 1970 |