| Anthidium scudderi(expression, fauna, extinction, rupelian) |
| Anthracotherium(noun, fauna, extinction, chattian) |
| Anthropornis(noun, fauna, extinction, rupelian) |
| Apidium(noun, fauna, extinction, rupelian) |
| Araripemydidae(noun, fauna, extinction, paleocene) |
| Archaeohyracidae(noun, fauna, extinction, chattian) |
| Archaeotherium(noun, fauna, extinction, rupelian) |
| Archaeus(noun, fauna, extinction, rupelian) |
| Arsinoitheriidae(noun, fauna, extinction, rupelian) |
| Arsinoitherium(noun, fauna, extinction, rupelian) |
| Avitoluvarus(noun, fauna, eocene, extinction) |
| Barytherium(noun, fauna, extinction, rupelian) |
| Bathygenys(noun, fauna, extinction, rupelian) |
| Behemotops(noun, fauna, extinction, chattian) |
| Bemalambdidae(noun, fauna, extinction, paleocene) |
| Boltysh crater(expression, geology, crater, paleogene) |
| Bothriogenys(noun, fauna, extinction, rupelian) |
| Calciavis(noun, fauna, eocene, extinction) |
| Chicxulub crater(expression, geology, crater, paleogene) |
| Chota Formation(expression, geohistory, formation, paleogene) |