| Cimolesta(noun, fauna, eocene, extinction) |
| Cimolodontidae(noun, fauna, extinction, paleocene) |
| Cimolomyidae(noun, fauna, extinction, paleocene) |
| Compsemys(noun, geohistory, fauna, extinction) |
| Condylarth(noun, fauna, extinction, paleocene) |
| Copecion(noun, fauna, eocene, extinction) |
| Cormocyon(noun, geohistory, extinction, oligocene) |
| Coryphodon(noun, fauna, eocene, extinction) |
| Crommium(noun, fauna, eocene, extinction) |
| Cymatoceras(noun, geohistory, extinction, oligocene) |
| Cymatoceratidae(noun, geohistory, extinction, oligocene) |
| Deltatheroida(noun, fauna, extinction, paleocene) |
| Denver Formation(expression, geohistory, formation, paleogene) |
| Diplomystus(noun, fauna, extinction, priabonian) |
| Dissacus(noun, fauna, eocene, extinction) |
| Enchodus(noun, fauna, eocene, extinction) |
| Eocene genus extinction(expression, extinction, period, geochronology) |
| Eosimiidae(noun, geohistory, extinction, oligocene) |
| Epihippus(noun, fauna, eocene, extinction) |
| Escavadodontidae(noun, fauna, extinction, paleocene) |