Mammalia - Rodentia - Mylagaulidae
Parent taxon: Rodentia according to W. W. Korth 2013
See also Carroll 1988, Hay 1902 and Wood 1958
Sister taxa: Alagomyidae, Allactagidae, Allomyidae, Anomalomyidae, Anomaluroidea, Aplodontoidea, Archetypomyidae, Callodontomys, Castorimorpha, Cavina, Cercolabidae, Conilurus, Ctenohystrica, Cylindrodontidae, Dolosimus, Downsimys, Echinomyidae, Ectropomys, Entoptychidae, Epeiromys, Eryomyidae, Eryomyina, Florentiamyidae, Gliroidea, Homocentrus, Hystricognatha, Ischyromyidae, Ischyromyiformes, Ivanantonia, Megacricetodontidae, Muriformia, Myodonta, Myomorpha, Pairomys, Paramyidae, Petauristidae, Pipestoneomyidae, Protrogomorpha, Pseudomys, Quercymys, Remyidae, Sciurognathi, Sciuroidea, Sciuromorpha, Siphneidae, Taeniodus, Theridomyoidea, Yuomyidae, Zamoramys, Zelomyidae
Subtaxa: Crucimys Mylagaulinae Promylagaulinae
Type: Mylagaulus
Ecology: ground dwelling herbivore
Distribution:
• Hemphillian of United States (26: Arizona, Florida, Idaho, Kansas, Nebraska, Nevada, New Mexico, Oklahoma, Oregon, Texas collections)
• Miocene of Canada (8: Saskatchewan), China (2), United States (152: Colorado, Florida, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, Oklahoma, Oregon, South Dakota, Texas, Wyoming)
• Harrisonian of United States (10: Nebraska, Oregon, South Dakota)
• Arikareean of United States (6: Idaho, Montana, Nebraska, South Dakota, Wyoming)
• Oligocene of Canada (2: Saskatchewan), United States (9: Nebraska, South Dakota)
Total: 215 collections including 238 occurrences