Costatheca sp.A
- Citations total:
- 2
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| original | Campanian | Maastrichtian | Canada(Alberta) | Gunther,P.R. et al. Megaspores and other palynomorphs of the Brazeau Formation (Upper Cretaceous) Nordegg area, Alberta, Canada. | 1972 |
| original | Late Cretaceous | Canada(Alberta) | Speelman,J.D. et al. Megaspore paleoecology | 1980 |