| Adapidae(noun, creature, geohistory, appearance, fauna) |
| Adapinae(noun, creature, geohistory, appearance, fauna) |
| Ambulocetidae(noun, creature, geohistory, appearance, fauna) |
| Asiadapinae(noun, creature, geohistory, appearance, fauna) |
| Azibiidae(noun, creature, geohistory, appearance, fauna) |
| Basilosaurinae(noun, creature, geohistory, appearance, fauna) |
| Brontotheriidae(noun, creature, geohistory, appearance, fauna) |
| Cercamoniinae(noun, creature, geohistory, appearance, fauna) |
| Echinopedinidae(noun, creature, geohistory, appearance, fauna) |
| Epoicotheriidae(noun, creature, geohistory, appearance, fauna) |
| Florentiamyidae(noun, creature, geohistory, appearance, fauna) |
| Formiciinae(noun, creature, geohistory, appearance, fauna) |
| Gobiomyidae(noun, creature, geohistory, appearance, fauna) |
| Hoanghoniinae(noun, creature, geohistory, appearance, fauna) |
| Horusornithidae(noun, creature, geohistory, appearance, fauna) |
| Macginitiea(noun, creature, geohistory, appearance, fauna) |
| Notharctidae(noun, creature, geohistory, appearance, fauna) |
| Notharctinae(noun, creature, geohistory, appearance, fauna) |
| Oromerycidae(noun, creature, geohistory, appearance, fauna) |
| Pakicetidae(noun, creature, geohistory, appearance, fauna) |