Mammalia - Multituberculata - Cimolomyidae
Alternative combination: Ptilodus gracilis
Synonyms: Cimolomys diagona Marsh 1889, Cimolomys digona Marsh 1889, Cimolomys nitidus Marsh 1889, Meniscoessus brevis Marsh 1889, Selenacodon brevis Marsh 1889
Full reference: O. C. Marsh. 1889. Discovery of Cretaceous Mammalia. American Journal of Science and Arts, series 3 38:81-92
Belongs to Cimolomys according to J. A. Lillegraven and M. C. McKenna 1986
See also Archibald 1982, Carrano 2025, Clemens 1964, Clemens and Kielan-Jaworowska 1979, Hay 1902, Hay 1930, Kielan-Jaworowska et al. 2004, Lillegraven 1969, Marsh 1889, Marsh 1889, Marsh 1897, Osborn 1893, Simpson 1929, Simpson 1937, Sloan and Russell 1974, Storer 1991 and Wood and Ormsbee 1954
Sister taxa: Cimolomys bellus, Cimolomys clarki, Cimolomys milliensis, Cimolomys parvus, Cimolomys trochuus
Type specimens:
- Cimolomys gracilis: YPM 11835, a tooth (M1). Its type locality is Mammal Quarry No. 1 (UCMP V-5003), which is in a Lancian terrestrial horizon in the Lance Formation of Wyoming.
- Cimolomys digona: YPM 11779, a tooth (M1). Its type locality is Mammal Quarry No. 5, which is in a Lancian terrestrial horizon in the Lance Formation of Wyoming.
- Cimolomys nitidus: YPM 11776, a tooth (M1). Its type locality is Mammal Quarry No. 1 (UCMP V-5003), which is in a Lancian terrestrial horizon in the Lance Formation of Wyoming.
- Selenacodon brevis: YPM 11876, a tooth (M2). Its type locality is Mammal Quarry No. 1 (UCMP V-5003), which is in a Lancian terrestrial horizon in the Lance Formation of Wyoming.
Ecology: arboreal herbivore
Distribution:
• Cretaceous of Canada (5: Alberta, Saskatchewan collections), United States (25: Montana, South Dakota, Wyoming)
Total: 30 collections including 32 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.