Mammalia - Rodentia - Aplodontidae
Full reference: J. R. Macdonald. 1970. Review of the Miocene Wounded Knee faunas of southwestern South Dakota. Bulletin of the Los Angeles County Museum of Natural History, Science 8:165-82
Parent taxon: Prosciurinae according to W. W. Korth 2009
See also Macdonald 1970 and McKenna and Bell 1997
Sister taxa: Campestrallomys, Costepeiromys, Ephemeromys, Haplomys, Oropyctis, Pelycomys, Pseudallomys, Spurimus
Subtaxa: Downsimus chadwicki Downsimus rainsi
Type: Downsimus chadwicki
Ecology: fossorial herbivore
Distribution:
• Arikareean of United States (3: Mississippi, Montana, Nebraska collections)
• Oligocene of Canada (1: Saskatchewan), United States (5: Nebraska, South Dakota)
Total: 9 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.