| Anthracotherium(noun, animal, geohistory, extinction) |
| Archaeohyracidae(noun, animal, geohistory, extinction) |
| Behemotops(noun, animal, geohistory, extinction) |
| Dermotherium(noun, animal, geohistory, extinction) |
| Desmostylidae(noun, animal, geohistory, extinction) |
| Dichobunidae(noun, animal, geohistory, extinction) |
| Eusmilus(noun, animal, geohistory, extinction) |
| Hypisodus(noun, animal, geohistory, extinction) |
| Ilariidae(noun, animal, geohistory, extinction) |
| Isotemnidae(noun, animal, geohistory, extinction) |
| Leptaucheniinae(noun, animal, geohistory, extinction) |
| Leptomeryx(noun, animal, geohistory, extinction) |
| Mammalodontidae(noun, animal, geohistory, extinction) |
| Merycoides(noun, animal, geohistory, extinction) |
| Merycoidodon(noun, animal, geohistory, extinction) |
| Nimravus(noun, animal, geohistory, extinction) |
| Notohippidae(noun, animal, geohistory, extinction) |
| Otarocyon(noun, animal, geohistory, extinction) |
| Paraenhydrocyon josephi(expression, animal, geohistory, extinction) |
| Philotrox(noun, animal, geohistory, extinction) |