| Name | From | To | Age range |
|---|---|---|---|
| Buxus | Paleocene | Recent |
|
| Buxus aneura | Tertiary | Tertiary |
|
| Buxus bahamensis | Tertiary | Late Eocene |
|
| Buxus bartletti | Early Eocene | Middle Eocene |
|
| Buxus citrifolia | Eocene | Early Miocene |
|
| Buxus colchica | Pliocene | Pliocene |
|
| Buxus cubana | Eocene | Early Miocene |
|
| Buxus flaviramea | Tertiary | Early Miocene |
|
| Buxus foliosa | Tertiary | Tertiary |
|
| Buxus glomerata | Tertiary | Tertiary |
|
| Buxus harlandii | Eocene | Early Miocene |
|
| Buxus hildebrandtii | Tertiary | Pleistocene |
|
| Buxus laevigata | Eocene | Early Miocene |
|
| Buxus lancifolia | Eocene | Early Miocene |
|
| Buxus loherii | Middle Eocene | Middle Eocene |
|
| Buxus macowani | Middle Eocene | Middle Eocene |
|
| Buxus macowanii | Tertiary | Tertiary |
|