| Paracrax(noun, geohistory, bird, oligocene) |
| Paraphysornis(noun, geohistory, bird, oligocene) |
| Parvigrus(noun, geohistory, bird, oligocene) |
| Pelagornis sandersi(expression, geohistory, bird, oligocene) |
| Phasmagyps(noun, geohistory, bird, oligocene) |
| Phoeniconotius(noun, geohistory, bird, oligocene) |
| Physornis(noun, geohistory, bird, oligocene) |
| Picavus(noun, geohistory, bird, oligocene) |
| Pinpanetta(noun, geohistory, bird, oligocene) |
| Platydyptes(noun, geohistory, bird, oligocene) |
| Presbyornis(noun, geohistory, bird, oligocene) |
| Primophaps(noun, geohistory, bird, oligocene) |
| Proardea(noun, geohistory, bird, oligocene) |
| Psilopterus(noun, geohistory, bird, oligocene) |
| Resoviaornis(noun, geohistory, bird, oligocene) |
| Rupelramphastoides(noun, geohistory, bird, oligocene) |
| Strigogyps(noun, geohistory, bird, oligocene) |
| Taubatornis(noun, geohistory, bird, oligocene) |
| Teratornithidae(noun, geohistory, bird, oligocene) |
| Wilaru(noun, geohistory, bird, oligocene) |