Genus Hexapterospermum
- Species total:
- 1
- Age range:
- 304 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hexapterospermum delvoryii | Middle Pennsylvanian | Middle Pennsylvanian |
|
Genus Hexapterospermum
- Species total:
- 1
- Age range:
- 304 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hexapterospermum delvoryii | Middle Pennsylvanian | Middle Pennsylvanian |
|