Genus Montanarocysta
- Species total:
- 3
- Age range:
- 90.33 - 54.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Montanarocysta | Late Cretaceous | Paleocene |
|
| Montanarocysta aemiliana | Senonian | Paleocene |
|
| Montanarocysta sp | Early Oligocene | Early Oligocene |
|