Mammalia - Artiodactyla - Merycoidodontidae
Full reference: C. B. Schultz and C. H. Falkenbach. 1968. The Phylogeny of the Oreodonts. Part 1: Merycoidodontinae, Eporeodontinae, and Leptaucheniinae, Three Subfamilies Of Oreodonts, With an Appendix to the Revision Of The Merycoidodontidae, and Part 2. Summary and Conclusions Concerning the Merycoidodontidae. Bulletin of the American Museum of Natural History 139:1-498
Parent taxon: Merycoidodontidae according to M. S. Stevens et al. 2023
See also Schultz and Falkenbach 1968, Stevens and Stevens 1996 and Stevens and Stevens 2007
Sister taxa: Aclistomycterinae, Brachycrurinae, Leptaucheniinae, Merychyinae, Merychyus pariogonus, Merycochoerinae, Merycoidodontinae, Miniochoerinae, Oreonetinae, Phenacocoelinae, Promerycochoerinae, Ticholeptinae, Ustatochoerinae, Diplotremus
Subtaxa: Eporeodon Merycoides
Ecology: ground dwelling herbivore
Distribution:
• Miocene of United States (4: Montana, Oregon, Wyoming collections)
• Harrisonian of United States (11: Montana, Nebraska, South Dakota, Wyoming)
• Arikareean of United States (5: California, Montana, Oregon, Wyoming)
• Oligocene of United States (11: Nebraska, Oregon, South Dakota, Washington)
Total: 31 collections including 35 occurrences