Genus Cryptoletes
- Species total:
- 3
- Age range:
- 325 - 321 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Cryptoletes | Namurian | Namurian |
|
| Cryptoletes apiculatus | Namurian | Chokierian |
|
| Cryptoletes rugulatus | Late Arnsbergian | Chokierian |
|