| 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 | Late Cretaceous | Canada(Alberta) | Speelman,J.D. et al. Megaspore paleoecology | 1980 | |
| details | Maastrichtian | Canada(Alberta) | Nambudiri,E.M.V. et al. Paleobotany, palynology and depositional environmen of the Maestrichtian Whitemud Formation in Alberta and Saskatchewan, Canada. | 1991 | |
| details | Late Maastrichtian | Canada(Alberta) | Srivastava,S.K. The Cretaceous megaspore genus Ghoshispora. | 1978 |