Genus Isthmocystis
- Species total:
- 2
- Age range:
- 195 - 100 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Isthmocystis | Valanginian | Valanginian |
|
| Isthmocystis distincta | Jurassic | Albian |
|
Genus Isthmocystis
- Species total:
- 2
- Age range:
- 195 - 100 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Isthmocystis | Valanginian | Valanginian |
|
| Isthmocystis distincta | Jurassic | Albian |
|