- Author:
- Bergad,R.D.;Hall,J.W.
- Year:
- 1971
- Title:
- A Cretaceous Azolla Massula with large Glochidia
- Reference:
- Bergad,R.D. et al. (1971) A Cretaceous Azolla Massula with large Glochidia Botanical Gazette Vol. 132 # 3 P. 237- 239
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Azolla | Azolla barbata | North Dakota | Late Cretaceous | |
| Azolla | Azolla cretacea | North Dakota | Late Cretaceous | |
| Azolla | Azolla cretacea | Montana | Late Cretaceous | |
| Azolla | Azolla cretacea | South Dakota | Late Cretaceous | |
| Azolla | Azolla distincta | North Dakota | Late Cretaceous | |
| Azolla | Azolla geneseana | Canada(Alberta) | Maastrichtian | |
| Azolla | Azolla gigantea sp. nov. | North Dakota | Late Cretaceous | |
| Azolla | Azolla montana | North Dakota | Late Cretaceous |