Sloanbaatar
Scientific classification
Kingdom: Animalia
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Sloanbaataridae
Genus: Sloanbaatar
Species
  S. mirabillis

Ref.

Sloanbaatar is a mammal genus that lived in Mongolia during the Upper Cretaceous. It shared the world with dinosaurs. This animal 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 member of the Sloanbaataridae.

Genus: Sloanbaatar Kielan-Jaworowska Z, 1970
'Sloan's hero' (Named in honour of paleotologist RE Sloan.)

Species: Sloanbaatar mirabillis Kielan-Jaworowska Z, 1970
Place: Djadokhta Formation
Country: Mongolia
Age: Coniacian - Santonian, Upper Cretaceous
Remarks: Info welcome.
Reference: Kielan-Jaworowska (1970), New Upper Cretaceous multituberculate genera from Bayn Dzak, Gobi Desert. Palaentologica Polonica, 21, p.35-49.

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] MESOZOIC MAMMALS; Djadochtatherioidea, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)