| Anthracotherium(noun, creature, geohistory, appearance, eocene) |
| Archaeohyrax(noun, creature, geohistory, appearance, eocene) |
| Archaeopithecidae(noun, creature, geohistory, appearance, eocene) |
| Asiadapinae(noun, creature, geohistory, appearance, eocene) |
| Asterostomatidae(noun, creature, geohistory, appearance, eocene) |
| Astrapotheriidae(noun, creature, geohistory, appearance, eocene) |
| Azibiidae(noun, creature, geohistory, appearance, eocene) |
| Basilosaurinae(noun, creature, geohistory, appearance, eocene) |
| Borhyaenidae(noun, creature, geohistory, appearance, eocene) |
| Brontotheriidae(noun, creature, geohistory, appearance, eocene) |
| Cercamoniinae(noun, creature, geohistory, appearance, eocene) |
| Chalicothere(noun, creature, geohistory, appearance, eocene) |
| Chalicotherioidea(noun, creature, geohistory, appearance, eocene) |
| Coeloma(noun, creature, geohistory, appearance, eocene) |
| Conoclypus(noun, creature, geohistory, appearance, eocene) |
| Daphoenus(noun, creature, geohistory, appearance, eocene) |
| Dermotherium(noun, creature, geohistory, appearance, eocene) |
| Diamantomyidae(noun, creature, geohistory, appearance, eocene) |
| Dichobunidae(noun, creature, geohistory, appearance, eocene) |
| Diplocynodontinae(noun, creature, geohistory, appearance, eocene) |