Parent taxon: Euprimateformes according to M. T. Silcox et al. 2010
See also Bloch et al. 2007, Carroll 1988, Fox 1990, Fox 1991, Gingerich 1973 and Gunnell 1989
Sister taxon: Euprimates
Subtaxa: Carpolestidae Picrodontidae Plesiadapidae Saxonellidae
Ecology: arboreal herbivore
Distribution:
• Eocene of Belgium (2 collections), Canada (3: Saskatchewan), China (2), France (8), Pakistan (2), the United Kingdom (8), United States (26: Montana, Nevada, Wyoming)
• Cf1 of United States (1: Wyoming)
• Cf3 of United States (1: Wyoming)
• Clarkforkian of United States (69: Colorado, Montana, Wyoming)
• Cf2 of United States (2: Wyoming)
• Paleocene to Eocene of France (1)
• Paleocene of Belgium (1), Canada (29: Alberta, Saskatchewan), China (2), France (8), Germany (1), United States (166: California, Colorado, Montana, North Dakota, Texas, Utah, Wyoming)
Total: 332 collections including 506 occurrences