| link
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From
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To
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Geolocation
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Author - title
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Year
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| details | Late Triassic | USSR(Komi ASSR) | Chalyshev,V.I. et al. Tatarian and Triassic deposits of the Pechorsk Basin and age of the fold area of the northern Pre -Ural Trough. (In: Collected Articles on the Geology of the Arctic. #14, B.V.Tkachenko, editor) | 1960 | |
| details | Tournaisian | Visean | USSR(European) | Lyuber,A.A. Atlas of spores and pollen of the Paleozoic deposits of Kazakhstan. | 1955 |