Genus Pterygospermum
- Species total:
- 2
- Age range:
- 345 - 230 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Pterygospermum | Late Pennsylvanian | Late Pennsylvanian |
|
| Pterygospermum raniganjense | Carboniferous | Permian |
|
Genus Pterygospermum
- Species total:
- 2
- Age range:
- 345 - 230 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Pterygospermum | Late Pennsylvanian | Late Pennsylvanian |
|
| Pterygospermum raniganjense | Carboniferous | Permian |
|