Merychyus Leidy 1858 (oreodont)

Mammalia - Ungulata - Merycoidodontidae

Synonym: Metoreodon Matthew and Cook 1909

Full reference: J. Leidy. 1858. Notice of Remains of Extinct Vertebrata, from the Valley of the Niobrara River, Collected during the Exploring Expedition of 1857, in Nebraska, under the Command of Lieut. G. K. Warren, U. S. Top. Eng., by Dr. F. V. Hayden, Geologist to the Expedition. Proceedings of the Academy of Natural Sciences of Philadelphia 10:15-89

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

See also Alroy 2002, Cope 1884, Hay 1902, Lander 1998, Lander and Lindsay 2011, Morgan et al. 2009, Parris and Grandstaff 2003, Schultz and Falkenbach 1947, Scott and Osborn 1890 and Thorpe 1937

Sister taxa: Oreodontoides, Paramerychyus

Subtaxa: Merychyus (Metoreodon) Merychyus arenarum Merychyus calaminthus Merychyus elegans Merychyus euryops Merychyus minimus Merychyus relictus Merychyus siouxensis Merychyus verrucomalus

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Ecology: ground dwelling herbivore


• Miocene of Canada (1: Saskatchewan collection), Mexico (2), United States (111: California, Colorado, Idaho, Kansas, Louisiana, Montana, Nebraska, Nevada, New Mexico, Oklahoma, Oregon, South Dakota, Texas, Wyoming)

• Harrisonian of United States (37: California, Montana, Nebraska, South Dakota, Texas, Wyoming)

• Arikareean of United States (19: Arizona, California, North Dakota, Oregon, Texas, Wyoming)

Total: 170 collections including 180 occurrences

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Specimen images are retrieved through the ePANDDA API.

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