| Afrotarsius(noun, geohistory, extinction, oligocene) |
| Alamitophis(noun, geohistory, fauna, extinction) |
| Alamosaurus(noun, geohistory, fauna, extinction) |
| Alvarez hypothesis(expression, geology, geohistory, hypothesis) |
| Andrewsarchus(noun, fauna, extinction, priabonian) |
| Araripemydidae(noun, fauna, extinction, paleocene) |
| Archaeohyrax(noun, geohistory, extinction, oligocene) |
| Archaeonycteridae(noun, fauna, extinction, lutetian) |
| Avitoluvarus(noun, fauna, eocene, extinction) |
| Bakevelliidae(noun, fauna, extinction, bartonian) |
| Bemalambdidae(noun, fauna, extinction, paleocene) |
| Bennettitales(noun, geohistory, extinction, oligocene) |
| Boltysh crater(expression, geology, crater, paleogene) |
| Caedocyon(noun, geohistory, extinction, oligocene) |
| Calamophylliopsis(noun, geohistory, extinction, oligocene) |
| Calciavis(noun, fauna, eocene, extinction) |
| Chattian extinction(expression, extinction, period, geochronology) |
| Chicxulub crater(expression, geology, crater, paleogene) |
| Chota Formation(expression, geohistory, formation, paleogene) |
| Chulpasia(noun, fauna, eocene, extinction) |