- Author:
- Millay,M.A.;Taylor,T.N.
- Year:
- 1982
- Title:
- The ultrastructure of Paleozoic fern spores.
- Reference:
- Millay,M.A. et al. (1982) The ultrastructure of Paleozoic fern spores. American Journal of Botany Vol. 69 # 7 P. 1148- 1155
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Botryopteris | Botryopteris cratis | USA(Mid-Continent) | Middle Pennsylvanian | |
| Botryopteris | Botryopteris forensis | USA(Mid-Continent) | Late Pennsylvanian | Early Permian |
| Botryopteris | Botryopteris globosa | USA(Mid-Continent) | Early Pennsylvanian | Middle Pennsylvanian |
| Botryopteris | Botryopteris sp | USA(Mid-Continent) | Early Pennsylvanian |