Cimolodonta is a clade of multituberculate mammals that lived from the Cretaceous to the Eocene.

They probably lived something of a rodent-like existence until their ecological niche was assumed by true rodents.

They first appeared during the Aptian, and completely replaced the more primitive plagiaulacidans by the early Late Cretaceous.

[2] The taxon is recognized as the informal Paracimexomys group and the superfamilies Djadochtatherioidea, Taeniolabidoidea, and Ptilodontoidea.

Additionally, and of uncertain affinities, are the families Cimolomyidae, Boffiidae, Eucosmodontidae, Kogaionidae, Microcosmodontidae and the two genera Uzbekbaatar and Viridomys.