| 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 | Aptian | Albian | USSR(WSL) | Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) | 1957 |