| Buccella(noun, creature, appearance, eocene, geogistory) |
| Budgerigar(noun, creature, geohistory, paleocene) |
| Buteo(noun, creature, appearance, eocene, geogistory) |
| Butterfly(noun, creature, geohistory, lutetian) |
| Caiman(noun, creature, geohistory, paleocene) |
| Callichthyidae(noun, creature, geohistory, paleocene) |
| Callochiton(noun, creature, appearance, eocene, geogistory) |
| Camelid(noun, creature, geohistory, lutetian) |
| Caniformia(noun, creature, geohistory, lutetian) |
| Caprimulgiformes(noun, creature, geohistory, paleocene) |
| Carnivora(noun, creature, geohistory, lutetian) |
| Carpilioidea(noun, creature, geohistory, paleocene) |
| Cassis(noun, creature, geohistory, paleocene) |
| Certhioidea(noun, creature, appearance, eocene, geogistory) |
| Cetacea(noun, creature, geohistory, ypresian) |
| Chaetopleura(noun, creature, appearance, eocene, geogistory) |
| Chamaesipho(noun, creature, appearance, eocene, geogistory) |
| Chameleon(noun, creature, geohistory, paleocene) |
| Charadriiformes(noun, creature, geohistory, lutetian) |
| Cheloniidae(noun, creature, geohistory, paleocene) |