| Name | From | To | Age range |
|---|---|---|---|
| Cranwellia crassicolpites | Late Cretaceous | Late Cretaceous |
|
| Cranwellia pengchiahsuana | Eocene | Eocene |
|
| Cranwellia fida | Maastrichtian | Maastrichtian |
|
| Cranwellia taiwaniana | Eocene | Eocene |
|