After McKenna & Bell, 1997, with fossil species from the “Paleobiology database”
<==o †Agriochoeridae |--o †Diplobunops Peterson, 1919 [Agriotherium; Chorotherium; Eomeryx; Mesagriochoerus; Protagriochoerus] | |-- †D. matthewi Peterson, 1919 | `-- †D. vanhouteni Gazin, 1955 |--o †Agriochoerus Leidy, 1850 | |-- †A. antiquus Leidy, 1850 [Agriochoerus latifrons Leidy, 1867; Mesonyx dakotensis Scott, 1892] | |-- †A. crassus Scott, 1945 [Diplobunops crassus] | |-- †A. gaudryi Osborn & Wortman 1894 [Agriochoerus migrans Marsh, 1894; Agriomeryx migrans (Marsh, 1894)] | |-- †A. guyotianus Cope, 1878 [Hyopotamus guyotianus; Merycopater guyotianus; Agriochoerus bullatus Thorpe, 1921; Agriochoerus macrocephalus Cope, 1879; Agriochoerus ryderanus Cope, 1881; Agriochoerus trifrons Cope, 1884; Coloreodon ferox Cope, 1879; Coloreodon macrocephalus (Cope, 1879); Coloreodon ryderanus (Cope, 1881)] | |-- †A. major Leidy, 1856 | `-- †A. maximus Douglass, 1901 `--o †Protoreodon Scott & Osborn, 1887 [Chorotherium Berg, 1899; Hyomeryx Marsh, 1894; Mesagriochoerus Peterson, 1934; Protagriochoerus Scott; 1899] |-- †P. minimus Douglass, 1901 [Agriochoerus minimus] |-- †P. minor Scott, 1899 |-- †P. pacificus Golz, 1976 |-- †P. parvus Scott & Osborn, 1887 |-- †P. pearcei Gazin, 1956 |-- †P. petersoni Gazin, 1955 |-- †P. pumilus (Marsh, 1875) [Agriochoerus pumilus; Eomeryx pumilus; Mesagriochoerus primus Peterson, 1934; Protagriochoerus annectens Scott, 1899; Protoreodon annectens Scott, 1899; Protoreodon medius Peterson, 1919; Protoreodon primus Peterson, 1934; Protoreodon tardus Scott, 1945] |-- †P. transmontanus Stock, 1949 `-- †P. walshi Theodor, 1999
Reference(s):
- Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698. - Carroll, R. L., 1988: Appendix. 594-648.
in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698.
McKenna, M. C. & Bell, S. K., eds., 1997: Classification of mammals; above the species level. - Morgan, G. S. & Lucas, S. G., 2003: Radioisotopically-calibrated oreodonts (Mammalia: Artiodactyla) from the Late Oligocene of Southwestern New Mexico.
–Journal of Vertebrate Paleontology: Vol. 23, #2, pp. 471-473 - Theodor, J. M., 1999: Protoreodon walshi, a new species of agriochoerid (Oreodonta, Artiodactyla, Mammalia) from the Late Uintan of San Diego County, California.
–Journal of Paleontology: Vol. 73, #6, pp. 1179-1190
–Columbia University Press, New York, 1997.