Hippopotamidae
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Suborder: | Nonruminantia |
| Superfamily: | Anthracotherioidea |
| Family: | Hippopotamidae |
- Genus
- species -- Common Name
- Choeropsis
- liberiensis -- Pigmy hippopotamus
- Hippopotamus
- amphibius -- Hippopotamus
