| Eucosmodontidae(noun, fauna, eocene, extinction) |
| Eurymylidae(noun, fauna, eocene, extinction) |
| Hallirhoidae(noun, fauna, eocene, extinction) |
| Hapalodectidae(noun, fauna, eocene, extinction) |
| Haplohippus(noun, fauna, eocene, extinction) |
| Henricosborniidae(noun, fauna, eocene, extinction) |
| Hyaenodontidae(noun, fauna, eocene, extinction) |
| Hyopsodontidae(noun, fauna, eocene, extinction) |
| Lambdopsalidae(noun, fauna, eocene, extinction) |
| Mesosuchia(noun, fauna, eocene, extinction) |
| Miacidae(noun, fauna, eocene, extinction) |
| Necrosauridae(noun, fauna, eocene, extinction) |
| Neoplagiaulacidae(noun, fauna, eocene, extinction) |
| Numidotheriidae(noun, fauna, eocene, extinction) |
| Oldfieldthomasiidae(noun, fauna, eocene, extinction) |
| Palaeophiidae(noun, fauna, eocene, extinction) |
| Phenacodontidae(noun, fauna, eocene, extinction) |
| Plesiadapiformes(noun, fauna, eocene, extinction) |
| Priscagamidae(noun, fauna, eocene, extinction) |
| Pristichampsidae(noun, fauna, eocene, extinction) |