| Name | From | To | Age range |
|---|---|---|---|
| Alnus kireevskiana | Miocene | Miocene |
|
| Alnus sp. Gray,1964 | Miocene | Miocene |
|
| Alnus sp.1 Sedo.,1956 | Miocene | Miocene |
|
| Alnus sp.2 Kruc.,1956 | Early Miocene | Early Miocene |
|
| Alnus flexilis | Miocene | Miocene |
|
| Alnus sp. More.,1956 | Miocene | Miocene |
|
| Alnus sp.3 Sedo.,1956 | Early Miocene | Early Miocene |
|
| Alnus kamtschatica | Oligocene | Middle Pliocene |
|
| Alnus americana | Oligocene | Oligocene |
|
| Alnus quadriangula | Early Oligocene | Early Oligocene |
|
| Alnus sp. Agra.et al,1956 | Early Oligocene | Early Oligocene |
|
| Alnus praerhombifolia | Oligocene | Oligocene |
|
| Alnus sp.2 Roma.,1956 | Oligocene | Oligocene |
|
| Alnus sp.1 Roma.,1956 | Oligocene | Oligocene |
|
| Alnus pentagona | Late Eocene | Late Eocene |
|
| Alnus firmiformis | Late Eocene | Middle Miocene |
|
| Alnus sp. Sung.et al,1964 | Late Eocene | Middle Oligocene |
|