Cimolodontidae

Cimolodontidae is a family of fossil mammals within the extinct order Multituberculata. Representatives are known from the Upper Cretaceous and Paleocene of North America. There is some doubt as to whether Cimolodon is within this taxon. If not, the name of the family would still be valid.
For the technically minded, this family is part of the suborder of Cimolodonta, within the superfamily of Ptilodontoidea.

Taxon: Cimolodontidae Marsh, 1889
Reference: Marsh (1889), Discovery of Cretaceous Mammalia. Part II. American J. of Sci., 3, 38, p.81-92.

Page reference: Page reference: Kielan-Jaworowska Z & Hurum JH (2001), Phylogeny and Systematics of multituberculate mammals. Paleontology 44, p.389-429.

(This information has been derived from [1] (http://home.arcor.de/ktdykes/ptilodon.htm) MESOZOIC MAMMALS; Ptilodontoidea, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)