| Propalaeotherium(noun, fauna, eocene, extinction) |
| Prorastomidae(noun, creature, geohistory, appearance, eocene) |
| Proteopithecidae(noun, creature, geohistory, appearance, eocene) |
| Protocetidae(noun, creature, geohistory, appearance, eocene) |
| Pseudocrypturus(noun, fauna, eocene, extinction) |
| Pyrocyon(noun, creature, geohistory, appearance, eocene) |
| Raoellidae(noun, creature, geohistory, appearance, eocene) |
| Remingtonocetidae(noun, creature, geohistory, appearance, eocene) |
| Rhynchonella(noun, fauna, eocene, extinction) |
| Rotularia(noun, fauna, eocene, extinction) |
| Simimyidae(noun, creature, geohistory, appearance, eocene) |
| Sinopa(noun, creature, geohistory, appearance, eocene) |
| Sivaladapidae(noun, creature, geohistory, appearance, eocene) |
| Spathorhynchus(noun, creature, geohistory, appearance, eocene) |
| Stenoplesictidae(noun, creature, geohistory, appearance, eocene) |
| Stylina(noun, fauna, eocene, extinction) |
| Thamnasteria(noun, fauna, eocene, extinction) |
| Tylocidaris(noun, fauna, eocene, extinction) |
| Tytthaena(noun, fauna, eocene, extinction) |
| Umayodus(noun, fauna, eocene, extinction) |