Full reference: R. E. Sloan and L. Van Valen. 1965. Cretaceous mammals from Montana. Science 148(3667):220-227
Parent taxon: Cimolodonta according to Z. Kielan-Jaworowska and J. H. Hurum 2001
See also Clemens and Kielan-Jaworowska 1979, Kielan-Jaworowska et al. 2004, Lillegraven and McKenna 1986, McKenna 1975, McKenna and Bell 1997, Scott et al. 2002 and Sloan and Van Valen 1965
Sister taxa: Boffiidae, Bryceomys, Cedaromys, Cimexomys, Cimolomyidae, Corriebaataridae, Dakotamys, Djadochtatherioidea, Eucosmodontidae, Kogaionidae, Microcosmodontidae, Paracimexomys, Taeniolabidoidea, Uzbekbaatar, Viridomys, Yubaatar
Subtaxa: Cimolodontidae Neoliotomus Neoplagiaulacidae Ptilodontidae
Ecology: arboreal omnivore
Distribution:
• Eocene of Belgium (2 collections), Canada (7: Northwest Territories, Nunavut, Saskatchewan), China (1), France (3), the United Kingdom (2), United States (73: California, Colorado, Montana, Nebraska, New Mexico, North Dakota, Wyoming)
• Clarkforkian of United States (23: Colorado, Wyoming)
• Paleocene to Eocene of United States (1: Wyoming)
• Paleocene of Canada (40: Alberta, Saskatchewan), China (2), France (2), United States (167: California, Colorado, Montana, New Mexico, North Dakota, Texas, Utah, Wyoming)
• Cretaceous of Canada (28: Alberta, Saskatchewan), Mexico (1), Romania (1), United States (141: Alaska, Colorado, Idaho, Montana, New Jersey, New Mexico, North Dakota, South Dakota, Texas, Utah, Wyoming)
Total: 494 collections including 971 occurrences