Mammalia - Multituberculata - Ptilodontidae
Parent taxon: Ptilodontoidea according to Z. Kielan-Jaworowska and J. H. Hurum 2001
See also Clemens and Kielan-Jaworowska 1979, Gazin 1969, Hay 1930, Kielan-Jaworowska et al. 2004, McKenna and Bell 1997, Scott et al. 2002, Simpson 1927, Simpson 1928, Simpson 1929, Sloan and Van Valen 1965 and Wood and Ormsbee 1954
Sister taxa: Cimolodontidae, Neoliotomus, Neoplagiaulacidae
Subtaxa: Aenigmamys Allacodon Baiotomeus Camptomus Kimbetohia Prochetodon Ptilodus
Type: Ptilodus
Ecology: arboreal omnivore
Distribution:
• Clarkforkian of United States (9: Colorado, Wyoming collections)
• Paleocene of Canada (28: Alberta, Saskatchewan), United States (95: California, Colorado, Montana, New Mexico, North Dakota, Texas, Utah, Wyoming)
• Cretaceous of Canada (1: Alberta), United States (6: New Mexico, Wyoming)
Total: 139 collections including 168 occurrences