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Geolocation
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Author - title
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Year
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| details | Kimmeridgian | Tithonian | Alaska | Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska | 1981 |
| details | Late Valanginian | Barremian | Archangelsky,S. et al. Stratigraphic palynology of the Cretaceous in Southern Argentina. LII. distribution of species and conclusion | 1984 |