Mammalia - Rodentia - Heteromyidae
Parent taxon: Heteromyidae according to B. Kurten and E. Anderson 1980
Sister taxa: Aurimys, Balantiomys, Chaetodipus, Cupidinimus, Dikkomys, Dipodomyinae, Dipodomys, Diprionomys, Eodipodomys, Harrymyinae, Harrymys, Heteromyinae, Lignimus, Liomys, Mioheteromys, Mookomys, Oregonomys, Peridiomys, Perodipus, Perognathus, Prodipodomys, Proheteromys, Schizodontomys, Stratimus, Trogomys
Subtaxa: Bursagnathus
Ecology: ground dwelling granivore-browser
Distribution:
• Quaternary of United States (41: Arizona, California, Colorado, Kansas, South Dakota, Texas, Utah collections)
• Blancan of United States (45: Arizona, California, Idaho, Kansas, Nevada, Texas, Washington)
• Hemphillian of United States (5: Arizona, California, Oregon)
• Miocene of United States (14: California, Montana, Oregon, South Dakota, Wyoming)
• Arikareean of United States (1: Idaho)
Total: 106 collections each including a single occurrence