| Name | From | To | Age range |
|---|---|---|---|
| Zelkova sp.1 Sung.et al,1964 | Late Eocene | Middle Oligocene |
|
| Zelkova sp.2 Sung et al,1964 | Late Eocene | Middle Oligocene |
|
| Name | From | To | Age range |
|---|---|---|---|
| Zelkova sp.1 Sung.et al,1964 | Late Eocene | Middle Oligocene |
|
| Zelkova sp.2 Sung et al,1964 | Late Eocene | Middle Oligocene |
|