| Pilgrimella(noun, eocene, extinction, genus) |
| Pliolophus(noun, eocene, extinction, genus) |
| Poebrotherium(noun, fauna, extinction, rupelian) |
| Presbyornithidae(noun, fauna, extinction, rupelian) |
| Proaracana(noun, eocene, extinction, genus) |
| Prochetodon(noun, eocene, extinction, genus) |
| Propalaeotherium(noun, eocene, extinction, genus) |
| Proplatyarthrus(noun, extinction, genus, oligocene) |
| Pseudocrypturus(noun, eocene, extinction, genus) |
| Pseudoprotoceras(noun, fauna, extinction, bartonian) |
| Rhynchonella(noun, eocene, extinction, genus) |
| Rotularia(noun, eocene, extinction, genus) |
| Sarkastodon(noun, eocene, extinction, genus) |
| Sinopa(noun, fauna, extinction, rupelian) |
| Spathorhynchus(noun, fauna, extinction, rupelian) |
| Stylina(noun, eocene, extinction, genus) |
| Thamnasteria(noun, eocene, extinction, genus) |
| Tylocidaris(noun, eocene, extinction, genus) |
| Tytthaena(noun, eocene, extinction, genus) |
| Umayodus(noun, eocene, extinction, genus) |