| Florentiamyidae(noun, creature, geohistory, rupelian) |
| Fungus-growing ants(expression, creature, geohistory, paleocene) |
| Galliformes(noun, creature, geohistory, paleocene) |
| Gastornithidae(noun, creature, geohistory, thanetian) |
| Gemmula(noun, creature, geohistory, paleocene) |
| Gentilicamelus(noun, creature, geohistory, rupelian) |
| Glires(noun, creature, geohistory, paleocene) |
| Gryposuchinae(noun, creature, geohistory, chattian) |
| Haplorhini(noun, creature, geohistory, paleocene) |
| Hemicyoninae(noun, creature, geohistory, chattian) |
| Heron(noun, creature, geohistory, paleocene) |
| Hexaplex(noun, creature, geohistory, paleocene) |
| Hexapodidae(noun, creature, geohistory, paleocene) |
| Houndshark(noun, creature, geohistory, paleocene) |
| Hymenaea mexicana(expression, creature, geohistory, chattian) |
| Hyopsodontidae(noun, creature, geohistory, danian) |
| Ilariidae(noun, creature, geohistory, chattian) |
| Iridaceae(noun, creature, geohistory, paleocene) |
| Lacertoidea(noun, creature, geohistory, paleocene) |
| Lagomorpha(noun, creature, geohistory, paleocene) |