Mammalia - Rodentia - Geomyidae
Parent taxon: Castorimorphi according to G. D’Elía et al. 2019
See also Carroll 1988, Flower 1883, Flower and Lydekker 1891, Gadow 1898, Hay 1902, Jaekel 1911, Johnson 1966, Kurten and Anderson 1980, Montgelard et al. 2002, Nowak 1991, Nowak 1999, Wilson and Reeder 2005, Wood 1935 and Wood 1958
Sister taxa: Castoridae, Castoroidea, Geomyoidea, Heteromyidae
Subtaxa: Geomyinae Nerterogeomys Parageomys Pleurolicus Pliogeomys Pliosaccomys Progeomys Reynoldsomys
Ecology: fossorial browser
Distribution:
• Quaternary of Canada (5: Alberta, Saskatchewan collections), Mexico (5), United States (307: Arizona, Arkansas, California, Colorado, Florida, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Missouri, Montana, Nebraska, Nevada, New Mexico, Oklahoma, Oregon, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Virginia, West Virginia)
• Blancan of Mexico (2), United States (127: Arizona, California, Colorado, Florida, Idaho, Kansas, Nebraska, Nevada, New Mexico, Oregon, Texas, Washington)
• Pliocene of United States (1: Idaho)
• Hemphillian of Mexico (1), United States (36: California, Idaho, Indiana, Nebraska, Nevada, Oklahoma, Oregon, Texas, Washington)
• Miocene of Canada (1: Saskatchewan), United States (22: California, Colorado, Montana, Nebraska, Nevada, New Mexico, Oregon, South Dakota, Wyoming)
• Harrisonian of United States (3: Nebraska, South Dakota, Texas)
• Arikareean of United States (10: California, Montana, Nebraska, Oregon, South Dakota, Wyoming)
• Oligocene of Canada (1: Saskatchewan), Puerto Rico (2), United States (6: Nebraska, Oregon, South Dakota)
• Eocene to Oligocene of Mexico (1)
Total: 530 collections including 612 occurrences