Genus Forma a
- Species total:
- 2
- Age range:
- 123 - 37.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Forma a | Early Hauterivian | Early Hauterivian |
|
| Forma A sp. Mour.& Brin.,2000 | Middle Eocene | Late Eocene |
|
Genus Forma a
- Species total:
- 2
- Age range:
- 123 - 37.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Forma a | Early Hauterivian | Early Hauterivian |
|
| Forma A sp. Mour.& Brin.,2000 | Middle Eocene | Late Eocene |
|