| Hyaenodontidae(noun, fauna, eocene, extinction) |
| Hyopsodontidae(noun, fauna, eocene, extinction) |
| Lambdopsalidae(noun, fauna, eocene, extinction) |
| Macginitiea(noun, fauna, eocene, extinction) |
| Mesosuchia(noun, fauna, eocene, extinction) |
| Miacidae(noun, fauna, eocene, extinction) |
| Necrosauridae(noun, fauna, eocene, extinction) |
| Neoplagiaulacidae(noun, fauna, eocene, extinction) |
| Notharctidae(noun, fauna, eocene, extinction) |
| Notharctinae(noun, fauna, eocene, extinction) |
| Numidotheriidae(noun, fauna, eocene, extinction) |
| Oldfieldthomasiidae(noun, fauna, eocene, extinction) |
| Oromerycidae(noun, fauna, eocene, extinction) |
| Pakicetidae(noun, fauna, eocene, extinction) |
| Palaeoamasiidae(noun, fauna, eocene, extinction) |
| Palaeochiropterygidae(noun, fauna, eocene, extinction) |
| Phenacodontidae(noun, fauna, eocene, extinction) |
| Plesiadapiformes(noun, fauna, eocene, extinction) |
| Priscagamidae(noun, fauna, eocene, extinction) |
| Pristichampsidae(noun, fauna, eocene, extinction) |