Kogaionidae
Kogaionidae is a family of fossil mammals within the extinct order Multituberculata. Representatives are known from the Upper Cretaceous and the Paleocene of Europe.
Taxon: Kogaionidae Rădulescu R & Samson P, 1996
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/cimolod.htm) MESOZOIC MAMMALS; 'basal' Cimolodonta, Cimolomyidae, Boffiidae and Kogaionidae, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)
Kogaionidae
Scientific classification
Kingdom: Animalia
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Kogaionidae Genera
Kogaionon
Barbatodon
Hainina
Ref.
For the technically minded, this family is part of the suborder of Cimolodonta. Other than that, their systematic relationships are hard to define.
Remarks: These were small multituberculates. For the even more technically minded: "Share with Taeniolabidoidea the general shape of the skull, with anterior part of zygomatic arches directed roughly transversely and very short basicranial region, which gives the skull a square-like appearance, but differ from them in having a strongly elongated snout and different dentition," (Kielan-Jaworowska & Hurum 2001, p.418). In polite company, zygomatic arches are known as cheek bones.
Reference: Rădulescu & Samson (1996), The first multituberculate skull from the Late Cretaceous (Maastrichtian) of Europe (Hateg Basin, Romania), Anuarul Institutului de Geologie al României, Supplement 1, 69, p.177-178.