Genus Costatascyclus
- Species total:
- 4
- Age range:
- 325 - 286 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Costatascyclus | Chesterian | Chesterian |
|
| Costatascyclus crenatus | Namurian | Early Stephanian |
|
| Costatascyclus sp | Chesterian | Moscovian |
|
| Costatascyclus sp. Gao & Wang,1984 | Permian | Permian |
|