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Geolocation
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Author - title
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Year
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| details | Albian | Canada(Alberta) | Vagvolgyi,A.B. Palynology of type McMurray Formation. | 1964 | |
| details | Late Cretaceous | Colorado | Clarke,R.T. Palynology of Vermejo Formation Coals, (Upper Cretaceous) in the Canon City Coal Field, Fremont County, Colorado | 1963 | |
| original | Early Cretaceous | Canada(W.Canada) | Pocock,S.A.J. Microfloral analysis and age determination of strata at the Jurassic-Cretaceous boundary in the Western Canada Plains | 1962 |