| Essonodon(noun, geohistory, fauna, extinction) |
| Etyiidae(noun, fauna, extinction, paleocene) |
| Fabiania(noun, fauna, eocene, extinction) |
| Ferris Formation(expression, geohistory, formation, paleogene) |
| Florissantia(noun, geohistory, extinction, oligocene) |
| Fort Union Formation(expression, geohistory, formation, paleogene) |
| Gastornis(noun, fauna, eocene, extinction) |
| Gastornithidae(noun, fauna, extinction, lutetian) |
| Glyphea(noun, fauna, eocene, extinction) |
| Glyptodontopelta(noun, geohistory, fauna, extinction) |
| Gobiatherium(noun, fauna, eocene, extinction) |
| Groeberiidae(noun, geohistory, extinction, oligocene) |
| Gryphaea(noun, fauna, eocene, extinction) |
| Guaduas Formation(expression, geohistory, formation, paleogene) |
| Hapalorestes(noun, fauna, eocene, extinction) |
| Haplohippus(noun, fauna, eocene, extinction) |
| Harpagolestes(noun, fauna, eocene, extinction) |
| Hell Creek Formation(expression, geohistory, formation, paleogene) |
| Hercoglossidae(noun, geohistory, extinction, oligocene) |
| Heteromeryx(noun, fauna, extinction, priabonian) |