Genus Ithnacysta
- Species total:
- 2
- Age range:
- 66.17 - 61.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Ithnacysta | Late Maastrichtian | Early Danian |
|
| Ithnacysta elongata | Late Maastrichtian | Danian |
|
Genus Ithnacysta
- Species total:
- 2
- Age range:
- 66.17 - 61.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Ithnacysta | Late Maastrichtian | Early Danian |
|
| Ithnacysta elongata | Late Maastrichtian | Danian |
|