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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 | Maastrichtian | Paleocene | Canada(Alberta) | Snead,R.G. Microfloral diagnosis of the Cretaceous-Tertiary boundary, Central Alberta. | 1969 |
| details | Paleocene | Canada(British Columbia) | Hills,L.V. et al. Azolla primaeva and its phylogenetic significance. | 1967 | |
| original | Paleocene | South Dakota | Dijkstra,S.J. Some Paleocene megaspores and other small fossils. | 1961 |