- Author:
- Fowler,K.
- Year:
- 1975
- Title:
- An escape mechanism for Spermatozoids in Azolla massulae.
- Reference:
- Fowler,K. (1975) An escape mechanism for Spermatozoids in Azolla massulae. American Fern Journal Vol. 65 # 1 P. 7- 10
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Azolla | Azolla indica | Nd | Nd | |
| Azolla | Azolla primaeva | Nd | Nd | |
| Azolla | Azolla prisca | England(Isle of Wight) | Early Oligocene |