Mammalia - Rodentia - Aplodontiidae
Full reference: R. W. Wilson. 1949. Early Tertiary rodents of North America. Carnegie Institution of Washington Publication 584(1):67-164
Parent taxon: Aplodontidae according to W. W. Korth et al. 2022
See also Korth 1992
Sister taxa: Allomyinae, Ameniscomys, Ansomyinae, Aplodontia, Brachygaulus, Disallomys, Leptoromys, Liodontia, Lophallomys, Meniscomyinae, Ninamys, Oligopetes, Paracitellus, Plesispermophilus, Prosciurus, Pseudaplodon, Sciurodon, Sewelleladon, Tardontia, Trigonomys
Subtaxa: Altasciurus Campestrallomys Costepeiromys Downsimus Ephemeromys Haplomys Oropyctis Pelycomys Pseudallomys Spurimus
Ecology: fossorial herbivore
Distribution:
• Arikareean of United States (5: Mississippi, Montana, Nebraska, Oregon collections)
• Oligocene of Canada (4: Saskatchewan), China (1), Germany (3), United States (55: Colorado, Montana, Nebraska, North Dakota, Oregon, South Dakota, Wyoming)
• Eocene to Oligocene of United States (1: Nebraska)
• Eocene of Canada (2: Saskatchewan), United States (9: Colorado, North Dakota, Wyoming)
Total: 80 collections including 105 occurrences