Genus Tyliosperma
- Species total:
- 1
- Age range:
- 299 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tyliosperma orbiculatum | Desmoinesian | Desmoinesian |
|
Genus Tyliosperma
- Species total:
- 1
- Age range:
- 299 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tyliosperma orbiculatum | Desmoinesian | Desmoinesian |
|