- Author:
- Sweet,A.R.;Hills,L.V.
- Year:
- 1970
- Title:
- Morphology, speciation, evolution and stratigraphic value of Azolla.
- Reference:
- Sweet,A.R. et al. (1970) Morphology, speciation, evolution and stratigraphic value of Azolla. American Association of Stratigraphic Palynologists,3rd Annual Meeting,Abstracts and Program P. 31- 31
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Azolla | Azolla | Canada(Alberta) | Late Cretaceous | Paleocene |
| Azolla | Azolla | Worldwide | Campanian | Recent |
| Azollopsis | Azollopsis | Nd | Nd | |
| Salvinia | Salvinia | Nd | Nd |