| Squalodon(noun, creature, geohistory, rupelian) |
| Squalodontidae(noun, creature, geohistory, chattian) |
| Struthionidae(noun, creature, geohistory, paleocene) |
| Sulidae(noun, creature, geohistory, paleocene) |
| Syndyocera(noun, creature, geohistory, chattian) |
| Tarsiiformes(noun, creature, geohistory, paleocene) |
| Thylacinidae(noun, creature, geohistory, chattian) |
| Thylacoleonidae(noun, creature, geohistory, chattian) |
| Toxodontidae(noun, creature, geohistory, chattian) |
| Triakis(noun, creature, geohistory, paleocene) |
| Tsaganomyidae(noun, creature, geohistory, rupelian) |
| Ungulate(noun, creature, geohistory, paleocene) |
| Vombatiformes(noun, creature, geohistory, chattian) |
| Xenarthra(noun, creature, geohistory, paleocene) |
| Ysengrinia(noun, creature, geohistory, chattian) |
| Zonaria(noun, creature, geohistory, paleocene) |
| Zonitidae(noun, creature, geohistory, paleocene) |
| Zygomaturinae(noun, creature, geohistory, chattian) |