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Geolocation
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Author - title
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Year
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| details | Liassic | USSR(Urals) | Faddeeva,I.Z. Palynological characteristics of Lower Mesozoic Coal deposits of Kazakhstan. (In: History of Lower Mesozoic Coal accumulation in Kazakhstan. Part 3) | 1963 | |
| details | Early Jurassic | USSR(Kazakh SSR) | Leonenok,N.I. Lower Mesozoic Coal-bearing deposits in the area of the Middle Course of the River Ilek. (In: History of Lower Mesozoic Coal Accumulation in Kazakhstan: Part 2.) | 1961 |