| Paracryptodira(noun, fauna, eocene, extinction) |
| Parapithecidae(noun, fauna, extinction, oligocene) |
| Parapithecoidea(noun, fauna, extinction, oligocene) |
| Parectypodus(noun, fauna, eocene, extinction) |
| Paschatherium(noun, fauna, eocene, extinction) |
| Patriofelis(noun, fauna, eocene, extinction) |
| Peltosaurus(noun, fauna, extinction, oligocene) |
| Pentacosmodon(noun, fauna, extinction, paleocene) |
| Pentacrinites(noun, fauna, eocene, extinction) |
| Periptychidae(noun, fauna, extinction, paleocene) |
| Phenacodontidae(noun, fauna, eocene, extinction) |
| Phymosoma(noun, fauna, eocene, extinction) |
| Piceoerpeton(noun, fauna, eocene, extinction) |
| Pilgrimella(noun, fauna, eocene, extinction) |
| Plesiadapiformes(noun, fauna, eocene, extinction) |
| Pleuraspidotherium(noun, fauna, extinction, paleocene) |
| Pliolophus(noun, fauna, eocene, extinction) |
| Priabonian extinction(expression, extinction, period, geochronology) |
| Prionessus(noun, fauna, extinction, paleocene) |
| Priscagamidae(noun, fauna, eocene, extinction) |