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| details | Aalenian | Bajocian | USSR(Kazakh SSR) | Korsakova,N.V. et al. On the biostratigraphy of Continental Mesozoic sections of Central Asia. (In: Stratigraphy and Paleontology of Mesozoic and Paleogene-Neogene Continental deposits of the Asiatic Part of the USSR.) | 1967 |
| details | Aalenian | Bajocian | USSR(Kazakh SSR) | Zhiltsova,N.N. et al. Separation of Middle Jurassic deposits of the central and western parts of the Caspian Depression according to palynological data. (In: Sporen and Pollen in Oils and Deposits of Oil and Gas-Bearing Regions of the USSR.) | 1971 |