Parent taxon: Ancylopoda according to J. J. Hooker and D. Dashzeveg 2004
See also Colbert 1935, Coombs 1998, Geraads et al. 2007, Hay 1902, Holbrook 1999, Hough 1955, Osborn 1913 and Prothero and Schoch 1989
Sister taxa: Artionychia, Lophiodontoidea, Perissonychia, Protomoropus
Subtaxa: Chalicotheriidae Eomoropidae Grangeria Lophiodontidae
Ecology: ground dwelling browser
Distribution:
• Quaternary of China (3 collections), Ethiopia (8)
• Pliocene to Pleistocene of China (1), India (1)
• Pliocene of China (1), Kenya (1), Malawi (1), Myanmar (1), South Africa (1), Tanzania (5)
• Hemphillian of United States (1: Nevada)
• Miocene of Afghanistan (1), Austria (3), Bulgaria (5), China (13), France (11), Georgia (2), Germany (5), Greece (16), Hungary (1), India (1), Kenya (8), Pakistan (7), Poland (1), the Russian Federation (1), Serbia and Montenegro (1), Slovakia (1), Spain (2), Tajikistan (2), Turkey (3), Uganda (1), United States (49: California, Colorado, Delaware, Florida, Montana, Nebraska, Nevada, Oregon, South Dakota, Texas, Utah, Wyoming)
• Harrisonian of United States (14: Nebraska, Oregon, Wyoming)
• Arikareean of Panama (1), United States (2: Oregon, Wyoming)
• Oligocene to Miocene of Kazakhstan (1), Pakistan (1)
• Oligocene of Angola (1), China (8), France (3), Georgia (1), Kazakhstan (2), United States (1: Florida)
• Eocene to Oligocene of Mexico (1)
• Eocene of Canada (1: Saskatchewan), China (16), France (45), Germany (36), Mongolia (3), Pakistan (2), Portugal (1), Spain (9), Switzerland (4), Thailand (1), the United Kingdom (4), United States (6: Utah, Wyoming)
Total: 322 collections including 363 occurrences