Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Living Organisms (hierarchy name)
4. living organisms (entities)
5. Eukaryota (domain)
6. Animalia (kingdom)
7. Chordata (phylum)
8. Vertebrata (subphylum)
9. Mammalia (class)
10. Artiodactyla (order)
11. Hippopotamidae (family)

Narrower term/s

• Hexaprotodon liberiensis (species)
• Hexaprotodon madagascariensis (extinct species)

Anotations

Scope note:

Genus containing two species of mammal with short, stumpy legs, and barrel-shaped bodies, smaller than the Hippopatums genus. It is believed that one species, the Malagasy pygmy hippopotamus, is extinct.