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Geolocation
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Author - title
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Year
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| details | Late Famennian | USSR(Urals) | Chibrikova,E.V. Devonian - Carboniferous Boundary in different structural facial zones of the South Urals and Fore Urals, (according to palynological data). | 1978 | |
| details | Early Visean | USSR(Urals) | Lyadova,R.A. et al. Lower and Middle Visean deposits of the Polyudovsk Rise. (In: Carboniferous Stratigraphy, Fusulinidae and Miospores of the Urals, Svedlovsk. G.N.Papulov et al, editor) | 1980 |