| Basilosaurinae(noun, creature, geohistory, appearance, eocene) |
| Borhyaenidae(noun, creature, geohistory, appearance, eocene) |
| Bothriogenys(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) |
| Cynodictis(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) |
| Echinopedinidae(noun, creature, geohistory, appearance, eocene) |
| Entelodont(noun, creature, geohistory, appearance, eocene) |
| Eomyidae(noun, creature, geohistory, appearance, eocene) |
| Eosimiidae(noun, creature, geohistory, appearance, eocene) |
| Epoicotheriidae(noun, creature, geohistory, appearance, eocene) |