†subfamily Issiodoromyinae Lavocat 1951 (rodent)
Mammalia - Rodentia - Theridomyidae
Parent taxon: Theridomyidae according to I. Bonilla-Salomón et al. 2016
See also Astibia et al. 2000, Peláez-Campomanes 1996 and Vianey-Liaud et al. 2014
Sister taxa: Archaeomys, Columbomys, Estellomys, Microsuevosciurus, Oltinomyinae, Oltinomys, Paradelomys, Pseudoltinomys, Pseudosciurinae, Remys, Sciuromys, Tardenomys, Thalerimys, Theridomyinae
Subtaxa: Elfomys Issiodoromys
Ecology: ground dwelling herbivore
Distribution:
• Oligocene of France (31 collections), Spain (8), Switzerland (3)
• Eocene of France (8), Spain (3), Switzerland (2)
Total: 55 collections including 58 occurrences