†subfamily Mesonychinae Cope 1880 (condylarth)

Mammalia - Acreodi - Mesonychidae

Parent taxon: Mesonychidae according to X. Zhou et al. 1995

See also Szalay and Gould 1966 and Zhang et al. 1979

Sister taxa: Dissacus, Dissacusium, Hapalodectinae, Harpagolestes, Hessolestes, Honanodon, Jiangxia, Lohoodon, Metahapalodectes, Olsenia, Pachyaena, Plagiocristodon, Sinonyx, Synoplotherium

Subtaxa: Ankalagon Guilestes Hukoutherium Mesonyx Mongolestes Mongolonyx Yantanglestes

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Ecology: ground dwelling carnivore

Distribution:

• Oligocene of China (2 collections)

• Eocene of China (7), United States (12: Colorado, Utah, Wyoming)

• Paleocene of China (4), United States (2: New Mexico)

Total: 27 collections including 31 occurrences

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