| Extant Lutetian first appearance(expression, geohistory, eocene, period, lutetian) |
| Extant Oligocene first appearance(expression, geohistory, appearance, period, oligocene) |
| Extant Paleocene first appearance(expression, geohistory, appearance, period, paleocene) |
| Extant Ypresian first appearance(expression, geohistory, eocene, period, ypresian) |
| Chattian first appearance(expression, geohistory, period, oligocene) |
| Danian first appearance(expression, geohistory, period, paleocene) |
| Extant Eocene first appearance(expression, geohistory, appearance, period) |
| Rupelian first appearance(expression, geohistory, period, oligocene) |
| Selandian first appearance(expression, geohistory, period, paleocene) |
| Thanetian first appearance(expression, geohistory, period, paleocene) |
| Atlanta(noun, creature, geohistory, eocene, bartonian) |
| Auk(noun, creature, geohistory, eocene, priabonian) |
| Cactus(noun, creature, geohistory, eocene, priabonian) |
| Canidae(noun, creature, geohistory, eocene, bartonian) |
| Colugo(noun, creature, geohistory, eocene, priabonian) |
| Cuckoo(noun, creature, geohistory, eocene, priabonian) |
| Geometer moth(expression, creature, geohistory, eocene, priabonian) |
| Geometridae(noun, creature, geohistory, eocene, priabonian) |
| Loon(noun, creature, geohistory, eocene, priabonian) |
| Mitsukurina(noun, creature, geohistory, eocene, bartonian) |