| Name | From | To | Age range |
|---|---|---|---|
| Buxus macrophylla | Tertiary | Early Miocene |
|
| Buxus madagascariensis | Eocene | Early Miocene |
|
| Buxus marginalis | Tertiary | Early Miocene |
|
| Buxus mexicana | Tertiary | Middle Miocene |
|
| Buxus microphylla | Pliocene | Pleistocene |
|
| Buxus muellerinan | Eocene | Early Miocene |
|
| Buxus pilosula | Tertiary | Early Miocene |
|
| Buxus pliocenica | Miocene | Pliocene |
|
| Buxus purdiana | Eocene | Early Miocene |
|
| Buxus retusa | Tertiary | Tertiary |
|
| Buxus rheelioides | Eocene | Early Miocene |
|
| Buxus sempervirens | Eocene | Early Pleistocene |
|
| Buxus sp | Cenomanian | Middle Pleistocene |
|
| Buxus sp. Glad.,1956 | Middle Miocene | Middle Miocene |
|
| Buxus vahlii | Tertiary | Tertiary |
|