| Name | From | To | Age range |
|---|---|---|---|
| Buxus bartletti | Early Eocene | Middle Eocene |
|
| Buxus bahamensis | Tertiary | Late Eocene |
|
| Buxus muellerinan | Eocene | Early Miocene |
|
| Buxus pilosula | Tertiary | Early Miocene |
|
| Buxus harlandii | Eocene | Early Miocene |
|
| Buxus marginalis | Tertiary | Early Miocene |
|
| Buxus madagascariensis | Eocene | Early Miocene |
|
| Buxus laevigata | Eocene | Early Miocene |
|
| Buxus lancifolia | Eocene | Early Miocene |
|
| Buxus flaviramea | Tertiary | Early Miocene |
|
| Buxus rheelioides | Eocene | Early Miocene |
|
| Buxus purdiana | Eocene | Early Miocene |
|
| Buxus citrifolia | Eocene | Early Miocene |
|
| Buxus macrophylla | Tertiary | Early Miocene |
|
| Buxus cubana | Eocene | Early Miocene |
|
| Buxus mexicana | Tertiary | Middle Miocene |
|
| Buxus pliocenica | Miocene | Pliocene |
|