- Author:
- Hemsley,A.R.
- Year:
- 1990
- Title:
- The ultrastructure of the exine of the megaspores in two Paleozoic seed-likestructures
- Reference:
- Hemsley,A.R. (1990) The ultrastructure of the exine of the megaspores in two Paleozoic seed-likestructures Review of Palaeobotany and Palynology Vol. 63 # 1 P. 137- 152
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Cystosporites | Cystosporites devonicus | Canada(Quebec) | Late Devonian | |
| Didymosporites | Didymosporites scottii | Scotland(Fife) | Late Visean | |
| Spermasporites | Spermasporites | Canada(Quebec) | Late Devonian | |
| Spermasporites | Spermasporites devonicus | Canada(Quebec) | Late Devonian |