Genus Betuloid forms
- Species total:
- 2
- Age range:
- 65 - 0.01 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Betuloid forms | Early Tertiary | Oligocene |
|
| Betuloid forms sp | Middle Eocene | Pleistocene |
|
Genus Betuloid forms
- Species total:
- 2
- Age range:
- 65 - 0.01 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Betuloid forms | Early Tertiary | Oligocene |
|
| Betuloid forms sp | Middle Eocene | Pleistocene |
|