| Ectopocynus(noun, animal, creature, geohistory, appearance) |
| Enhydrocyon(noun, animal, creature, geohistory, appearance) |
| Entelodont(noun, creature, geohistory, appearance, eocene) |
| Eomyidae(noun, creature, geohistory, appearance, eocene) |
| Eosimiidae(noun, creature, geohistory, appearance, eocene) |
| Eutypomyidae(noun, creature, geohistory, appearance, eocene) |
| Florissantia(noun, creature, geohistory, appearance, eocene) |
| Galecyon(noun, creature, geohistory, appearance, eocene) |
| Gentilicamelus(noun, animal, creature, geohistory, appearance) |
| Gigantostrea(noun, creature, geohistory, appearance, eocene) |
| Hegetotheriidae(noun, creature, geohistory, appearance, eocene) |
| Heliscomyidae(noun, creature, geohistory, appearance, eocene) |
| Hesperocyoninae(noun, creature, geohistory, appearance, eocene) |
| Homalodotheriidae(noun, creature, geohistory, appearance, eocene) |
| Hyaenodon(noun, creature, geohistory, appearance, eocene) |
| Hypertragulidae(noun, creature, geohistory, appearance, eocene) |
| Hypertragulus(noun, creature, geohistory, appearance, eocene) |
| Hyporhina(noun, creature, geohistory, appearance, eocene) |
| Hyracodontidae(noun, creature, geohistory, appearance, eocene) |
| Indricotheriinae(noun, creature, geohistory, appearance, eocene) |