†subfamily Merycoidodontinae Hay 1902 (oreodont)

Mammalia - Artiodactyla - Merycoidodontidae

Full reference: O. P. Hay. 1902. Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179:1-868

Parent taxon: Merycoidodontidae according to M. S. Stevens and J. B. Stevens 2007

See also Hay 1902

Sister taxa: Aclistomycterinae, Brachycrurinae, Desmatochoerinae, Eporeodontinae, Leptaucheniinae, Merychyinae, Merycochoerinae, Miniochoerinae, Oreonetinae, Phenacocoelinae, Promerycochoerinae, Ticholeptinae, Ustatochoerinae, Eucrotaphus, Diplotremus

Subtaxa: Merycoidodon Mesoreodon

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Ecology: ground dwelling herbivore

Distribution:

• Miocene of United States (1: Florida collection)

• Harrisonian of United States (5: South Dakota, Wyoming)

• Arikareean of United States (25: California, Idaho, Montana, Nebraska, Oregon, South Dakota, Wyoming)

• Oligocene of Canada (1: Saskatchewan), United States (146: Colorado, Florida, Montana, Nebraska, North Dakota, South Dakota, Washington, Wyoming)

• Eocene to Oligocene of United States (1: Wyoming)

• Eocene of Canada (2: Saskatchewan), Mexico (2), United States (30: Colorado, Montana, Nebraska, South Dakota, Texas, Wyoming)

Total: 213 collections including 226 occurrences

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