†Protoreodon Scott and Osborn 1887 (agriochoerid)
Mammalia - Artiodactyla - Agriochoeridae
Synonyms: Chorotherium Berg 1899, Hyomeryx Marsh 1894, Mesagriochoerus Peterson 1934, Protagriochoerus Scott 1899
Parent taxon: Agriochoeridae according to J. M. Theodor 1999
Sister taxa: Agriochoerus, Diplobunops
Subtaxa: Protoreodon minimus, Protoreodon minor, Protoreodon pacificus, Protoreodon parvus, Protoreodon pearcei, Protoreodon petersoni, Protoreodon pumilus, Protoreodon transmontanus, Protoreodon walshi
Type: Protoreodon parvus
Ecology: scansorial herbivore