type locality is High Rock Canyon 
Alternative combinations: Cosoryx nevadensis, Merycodus nevadensis
Full reference: J. C. Merriam. 1911. Tertiary Mammal Beds Of Virgin Valley and Thousand Creek In Northwestern Nevada. Part II.-Vertebrate Faunas. University of California Publications Bulletin of the Department of Geology 6(11):199-304
Type specimen: UCMP 12608, a mandible (a lower jaw with m1 to m3)
Ecology: ground dwelling browser-grazer
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.