- Author:
- Delevoryas,T.
- Year:
- 1964
- Title:
- A probable Pteridosperm microsporangiate fructification from the Pennsylvanian of Illinois
- Reference:
- Delevoryas,T. (1964) A probable Pteridosperm microsporangiate fructification from the Pennsylvanian of Illinois Palaeontology Vol. 7 # 1 P. 60- 63
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Schopfitheca | Schopfitheca | Illinois | Middle Pennsylvanian | |
| Schopfitheca | Schopfitheca boulayoides sp. nov. | Illinois | Middle Pennsylvanian | |
| Spore | Spore sp | Illinois | Middle Pennsylvanian |