Cedaromys

Cedaromys is an extinct mammal which lived during the Upper Cretaceous, at the same time as many dinosaurs. It was a member of the also extinct order of Multituberculata.
For those of a technical disposition, it's within the Suborder of Cimolodonta, and a possible member of the Paracimexomys group.

Genus: Cedaromys Eaton JG & Cifelli RL, 2001
'Cedar mouse'
Remarks: As it was first published after their study, Kielan-Jaworowska Z & Hurum JH (2001) didn't comment upon the placement of this genus. It might belong elsewhere.

Species: Cedaromys bestia Eaton JG & Cifelli RL, 2001
Place: Cedar Mountain Formation, Utah
Country: USA
Age: Albian (late) - Cenomanian (early), Upper Cretaceous
Remarks: This is perhaps the fossil formerly known as ?Paracimexomys bestia Eaton JG & Nelson ME, 1991. Confirmation or contradiction welcome!
Reference: Eaton & Cifelli (2001), Multituberculate mammals from near the Early-Late Cretaceous boundary, Cedar Mountain Formation, Utah. Acta Palaeontologica Polonica 46(4), p.453-518.

Species: Cedaromys parvus Eaton JG & Cifelli RL, 2001
Place: Cedar Mountain Formation, Utah
Country: USA
Age: Albian (late) - Cenomanian (early), Upper Cretaceous
Remarks: Also in the Oklahoma collection. Suggested bodyweight is around 90g.
Reference: Eaton & Cifelli (2001), Multituberculate mammals from near the Early-Late Cretaceous boundary, Cedar Mountain Formation, Utah. Acta Palaeontologica Polonica 46(4), p.453-518.

Page references: 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/cimolod.htm) MESOZOIC MAMMALS; 'basal' Cimolodonta, Cimolomyidae, Boffidae and Kogaionidae, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)