Mammalia - Rodentia - Cricetidae

Alternative combination: Paciculus mcgregori

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

Belongs to Geringia according to M. R. Williams and J. E. Storer 1998

Sister taxon: Geringia gloveri

Type specimen: Its type locality is Sharps (SDSM V-544), which is in a Geringian terrestrial horizon in the Sharps Formation of South Dakota

Average measurements (in mm): M1 1.86 x 1.55, M2 1.73 x 1.58, M3 1.47 x 1.49, m1 1.70 x 1.41

Estimated body mass: 23.7 g based on m1 length