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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 | Nd | Canada(Alberta) | Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. | 1964 | |
| original | Neocomian | Early Albian | 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 |