| Name | From | To | Age range |
|---|---|---|---|
| Cranwellia bacata | Turonian | Eocene |
|
| Cranwellia asperata | Maastrichtian | Middle Maestrichtian |
|
| Cranwellia acutula | Early Senonian | Early Senonian |
|
| Cranwellia | Mesozoic | Pleistocene |
|