Mammalia - Acreodi - Mesonychidae
Full reference: E. D. Cope. 1875. On the supposed Carnivora of the Eocene of the Rocky Mountains. Proceedings of the Academy of Natural Sciences (separate) 1-4
Parent taxon: Mesonychia according to F. Solé et al. 2018
See also Archibald 1998, Carroll 1988, Chow et al. 1977, Cope 1875, Cope 1880, Cope 1880, Cope 1889, Dehm and Oettingen-Spielberg 1958, Flower and Lydekker 1891, Geisler and McKenna 2007, Gingerich 1982, Gingerich 1998, Hay 1902, Hay 1930, McKenna and Bell 1997, Peterson 1919, Pilgrim 1940, Rose et al. 2012, Spaulding et al. 2009, Szalay and Gould 1966, Thewissen et al. 2001, Zhang et al. 1979 and Zhou et al. 1995
Sister taxa: Andrewsarchidae, Hapalodectidae, Simidectes, Wyolestes, Wyolestidae
Subtaxa: Dissacus Dissacusium Hapalodectinae Harpagolestes Hessolestes Honanodon Jiangxia Lohoodon Mesonychinae Metahapalodectes Olsenia Pachyaena Plagiocristodon Sinonyx Synoplotherium
Type: Mesonyx
Ecology: ground dwelling carnivore
Distribution:
• Oligocene of China (2 collections)
• Eocene to Oligocene of North Korea (1)
• Eocene of Belgium (1), Canada (2: Northwest Territories, Saskatchewan), China (17), France (9), Kyrgyzstan (1), Mexico (1), Mongolia (4), North Korea (1), Pakistan (2), Spain (2), the United Kingdom (1), United States (121: California, Colorado, New Mexico, Oregon, Texas, Utah, Wyoming)
• Clarkforkian of United States (27: Colorado, Montana, Wyoming)
• Paleocene of Canada (2: Alberta), China (15), France (2), Mongolia (2), United States (25: California, Colorado, Montana, New Mexico, North Dakota, Wyoming)
Total: 238 collections including 266 occurrences