Genus Zygnema
- Species total:
- 4
- Age range:
- 40.25 - 0.01 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Zygnema | Late Oligocene | Early Pleistocene |
|
| Zygnema sp | Late Eocene | Late Pleistocene |
|
| Zygnema type A | Late Oligocene | Middle Miocene |
|
| Zygnema type B | Late Oligocene | Middle Miocene |
|