| 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 | Tithonian | USSR(Yakut ASSR) | Vakhrameev,V.A. et al. Paleobotanical data and the Border Line between Jurassic and Cretaceous Systems. | 1973 | |
| details | Late Liassic | USSR(Kazakh SSR) | Kotova,L.I. Triassic and Jurassic spore-pollen assemblages of the eastern Half of Kazakhstan and their stratigraphic significance. | 1976 |