| Sophiornithidae(noun, animal, geohistory, appearance) |
| Sparassodonta(noun, animal, geohistory, appearance) |
| Sveltia(noun, animal, geohistory, appearance) |
| Tillodontia(noun, animal, geohistory, appearance) |
| Toxodonta(noun, animal, geohistory, appearance) |
| Triisodontidae(noun, animal, geohistory, appearance) |
| Tytthaena(noun, animal, geohistory, appearance) |
| Uintatheriidae(noun, animal, geohistory, appearance) |
| Umayodus(noun, animal, geohistory, appearance) |
| Velates(noun, animal, geohistory, appearance) |
| Viverravidae(noun, animal, geohistory, appearance) |
| Xenungulata(noun, animal, geohistory, appearance) |
| Alligatorinae(noun, creature, geohistory, paleocene, selandian) |
| Caiman(noun, creature, geohistory, paleocene, selandian) |
| Iridaceae(noun, creature, geohistory, paleocene, selandian) |
| Lacertoidea(noun, creature, geohistory, paleocene, selandian) |
| Proboscidea(noun, creature, geohistory, paleocene, selandian) |
| Strisores(noun, creature, geohistory, paleocene, selandian) |
| Aequornithes(noun, creature, geohistory, paleocene) |
| Afroaves(noun, creature, geohistory, paleocene) |