Azollopsis sp
- Citations total:
- 3
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| details | Cretaceous | Early Paleocene | Canada(Alberta) | Sweet,A.R. et al. Evolution of Azolla and Azollopsis during the Upper Cretaceous and Lower Tertiary. | 1971 |
| details | Maastrichtian | Canada(Yukon) | Sweet,A.R. Palynology of the lower part, type section, Tent Island Formation, Yukon Territory. | 1978 | |
| details | Late Jurassic | Early Cretaceous | USSR | Petrosyants,M.A. A study of microfossils for revealing old sedimentation environment | 1984 |