| Oligocene extinction(expression, geohistory, extinction, period, boundary) |
| Eocene extinction(expression, extinction, period, geochronology) |
| Hoploparia(noun, genus, fossil, lobster) |
| Paleocene extinction(expression, extinction, period, geochronology) |
| Paleogene genus extinction(expression, extinction, period, paleogene) |
| Glyphocyphidae(noun, extinction, family, urchin) |
| Glyptosaurinae(noun, extinction, lizard, subfamily) |
| Paleogene species extinction(expression, extinction, period, paleogene) |
| Synechodontiformes(noun, order, extinction, shark) |
| Eocene genus extinction(expression, extinction, period, geochronology) |
| Oligocene genus extinction(expression, extinction, period, geochronology) |
| Paleocene genus extinction(expression, extinction, period, geochronology) |
| Adapidae(noun, geohistory, eocene, extinction) |
| Adapinae(noun, geohistory, eocene, extinction) |
| Adapisoriculidae(noun, geohistory, extinction, paleocene) |
| Afrotarsius(noun, geohistory, extinction, oligocene) |
| Alagomyidae(noun, geohistory, eocene, extinction) |
| Alamosaurus(noun, geohistory, fauna, extinction) |
| Ambulocetidae(noun, geohistory, eocene, extinction) |
| Anaptomorphinae(noun, geohistory, eocene, extinction) |