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Geolocation
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Author - title
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Year
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| details | Early Maastrichtian | Wyoming | Nichols,D.J. et al. Biostratigraphy of Upper Cretaceous non-marine palynofloras in a north-south transect of the Western Interior Basin. (In: Evolution of the Western Interior Basin) | 1993 | |
| details | Cretaceous | Wyoming | Guennel,G.K. et al. Palynology of the Hoback Basin | 1973 | |
| details | Maastrichtian | Wyoming | Grigoreva,K.N. Spore-pollen assemblages of Maestrichtian deposits of the Western Siberian Lowland. | 1966 |