Genus Concavioide
- Species total:
- 3
- Age range:
- 370 - 314 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Concavioide form 1 | Middle Devonian | Early Carboniferous |
|
| Concavioide form 2 | Middle Devonian | Early Carboniferous |
|
| Concavioide form 3 | Middle Devonian | Early Carboniferous |
|