Acta Zoologica Cracoviensia, 33() 1990

Issue:

VOL 33() 1990

Download PDF

Share this article:

The earliest rodents (Rodentia, Ctenodactyloidea) of Central Asia

• Demberelyin DASHZEVEG

Abstract:

The Eocene family Cocomyidae (Ctenodactyloidea) is divided into two subfamilies: Cocomyinae and Advenimurinae subfam. nov. Sharomys singularis, S. parvus, Kharomys mirandus, K. gracilis, Tsagamys subitatus and Ulanomys mirificus are described as new species of Cocomyinae from the Early Eocene of Naran-Bulak. Boromys grandis gen. et sp. nov. is described as a representative of Advenimurinae from the Middle Eocene of Khaichin-Ula II. Genus Saykanomys Shevyreva, 1972 is a junior synonym of Advenimus Dawson, 1964. The problem of the time of appearance of rodents on the territory of central Asia is discussed in the light of the new material from Mongolian People´s Republic.