| Remingtonocetidae(noun, creature, geohistory, appearance, eocene) |
| Sarkastodon(noun, creature, geohistory, appearance, eocene) |
| 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) |
| Paraenhydrocyon josephi(fauna, extinction, chattian) |
| eocene genus extinction(noun, fauna, extinction, chattian) |
| lutetian extinction(noun, fauna, extinction, chattian) |
| oligocene genus extinction(noun, fauna, extinction, chattian) |
| paleocene genus extinction(noun, fauna, extinction, chattian) |
| priabonian extinction(noun, fauna, extinction, chattian) |
| rupelian extinction(noun, fauna, extinction, chattian) |
| ypresian extinction(noun, fauna, extinction, chattian) |
| bartonian extinction(noun, fauna, extinction, chattian) |
| extant paleogene first appearance(noun, creature, geohistory, eocene) |
| oligocene extinction(noun, fauna, extinction, chattian) |
| oligocene first appearance(noun, creature, geohistory, eocene) |
| paleocene first appearance(noun, creature, geohistory, eocene) |