- Author:
- Rothwell,G.W.
- Year:
- 1972
- Title:
- Pollen grains of the Pennsylvanian Callisto Phytaceae (Pteridospermopsida)
- Reference:
- Rothwell,G.W. (1972) Pollen grains of the Pennsylvanian Callisto Phytaceae (Pteridospermopsida) American Journal of Botany Vol. 59 # 10 P. 993- 999
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Callandrium | Callandrium callistophytoides | Illinois | Middle Pennsylvanian | Late Pennsylvanian |
| Idanothekion | Idanothekion glandulosum | Illinois | Middle Pennsylvanian | Late Pennsylvanian |
| Vesicaspora | Vesicaspora | Illinois | Middle Pennsylvanian | Late Pennsylvanian |