| Aequornithes(noun, creature, geohistory, paleocene) |
| Afroaves(noun, creature, geohistory, paleocene) |
| Afrotheria(noun, creature, geohistory, paleocene) |
| Aldrovanda(noun, creature, geohistory, paleocene) |
| Alligatorinae(noun, creature, geohistory, paleocene) |
| Ampullinopsis(noun, creature, geohistory, paleocene) |
| Andrias(noun, creature, geohistory, paleocene) |
| Apodiformes(noun, creature, geohistory, paleocene) |
| Archaeohippus(noun, creature, geohistory, chattian) |
| Archaeus(noun, creature, geohistory, thanetian) |
| Astraea(noun, creature, geohistory, paleocene) |
| Atlantogenata(noun, creature, geohistory, paleocene) |
| Australidelphia(noun, creature, geohistory, paleocene) |
| Balbaridae(noun, creature, geohistory, chattian) |
| Bathytoma(noun, creature, geohistory, paleocene) |
| Behemotops(noun, creature, geohistory, rupelian) |
| Boidae(noun, creature, geohistory, paleocene) |
| Boinae(noun, creature, geohistory, paleocene) |
| Budgerigar(noun, creature, geohistory, paleocene) |
| Caiman(noun, creature, geohistory, paleocene) |