| Echinopedinidae(noun, creature, geohistory, appearance, eocene) |
| Ecphora(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) |
| Eutypomyidae(noun, creature, geohistory, appearance, eocene) |
| Florentiamyidae(noun, creature, geohistory, appearance, eocene) |
| Florissantia(noun, creature, geohistory, appearance, eocene) |
| Formiciinae(noun, creature, geohistory, appearance, eocene) |
| Galecyon(noun, creature, geohistory, appearance, eocene) |
| Gigantostrea(noun, creature, geohistory, appearance, eocene) |
| Gobiomyidae(noun, creature, geohistory, appearance, eocene) |
| Hegetotheriidae(noun, creature, geohistory, appearance, eocene) |
| Heliscomyidae(noun, creature, geohistory, appearance, eocene) |
| Hesperocyoninae(noun, creature, geohistory, appearance, eocene) |
| Hoanghoniinae(noun, creature, geohistory, appearance, eocene) |
| Homalodotheriidae(noun, creature, geohistory, appearance, eocene) |
| Horusornithidae(noun, creature, geohistory, appearance, eocene) |
| Hyaenodon(noun, creature, geohistory, appearance, eocene) |