link
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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 | North Dakota | Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. | 1974 | |
details | Maastrichtian | Canada(Alberta) | Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores | 1990 |