†subfamily Promylagaulinae Rensberger 1980 (rodent)
Mammalia - Rodentia - Mylagaulidae
Parent taxon: Mylagaulidae according to J. M. Rensberger 1980
Sister taxa: Crucimys, Mylagaulinae
Subtaxa: Argaleogaulus Irtyshogaulus Lamugaulus Promylagaulus Trilaccogaulus
Type: Argaleogaulus
Ecology: ground dwelling herbivore
Distribution:
• Miocene of China (1 collection)
• Harrisonian of United States (7: Nebraska, South Dakota)
• Arikareean of United States (5: Idaho, Montana, Nebraska, South Dakota, Wyoming)
• Oligocene of Canada (1: Saskatchewan), United States (6: Nebraska, South Dakota)
Total: 20 collections including 23 occurrences