Genus Helothuriadeigma
- Species total:
- 1
- Age range:
- 435 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Helothuriadeigma heterakainum | Early Llandoverian | Early Llandoverian |
|
Genus Helothuriadeigma
- Species total:
- 1
- Age range:
- 435 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Helothuriadeigma heterakainum | Early Llandoverian | Early Llandoverian |
|