Mammalia - Rodentia - Tamquammyidae
Synonyms: Cocomyidae de Bruijn et al. 1982, Orogomyidae Dashzeveg 1990
Parent taxon: Ctenodactyloidea according to Y. Tong 1997
See also Averianov 1996, Carroll 1988 and Dashzeveg 1990
Sister taxa: Advenimus, Ageitonomys, Alaymys, Anadianomys, Bandaomys, Borisomys, Butomys, Chapattimyidae, Chenomys, Chuankueimys, Cocomys, Ctenodactylidae, Dianomys, Distylomyidae, Euboromys, Exmus, Gobiomyidae, Hannanomys, Hohomys, Petrokozlovia, Saykanomys, Simplicimys, Stelmomys, Tamquammys, Tataromyidae, Tsinlingomys, Xueshimys, Yongshengomys, Yuanomys, Yuomys, Zodiomys, Zoyphiomys
Subtaxa: Cocomyinae Orogomys Tamquammyinae Tsagankhushumys Tsinlingomyinae
Ecology: ground dwelling herbivore
Distribution:
• Eocene to Oligocene of China (1 collection)
• Eocene of China (2), Kyrgyzstan (1), Mongolia (3), Pakistan (1)
Total: 8 collections including 17 occurrences