Djadochtatheriidae
Scientific classification
Kingdom: Animalia
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Djadochtatheriidae
Genera
  Djadochtatherium
  Catopsbaatar
  Kryptobaatar
  Tombaatar

Ref.

Djadochtatheriidae is a family of fossil mammals within the extinct order Multituberculata. Remains are known from the Upper Cretaceous of Central Asia. These animals lived during the 'age of the dinosaurs'.
Multituberculates have traditionally been depicted as herbivores. This is too simplistic, and they’re increasingly referred to as herbivores and omnivores. Certainly in the case of Kryptobaatar, if I’d been a small Mesozoic lizard, I’d have kept a healthy distance between us, just in case.
For the technically minded, this family is part of the suborder of Cimolodonta.

Taxon: Djadochtatheriidae Kielan-Jaworowska Z & Hurum JH, 1997
Reference: Kielan-Jaworowska Z & Hurum JH (1997), Djadochtatheria: a new suborder of multituberculate mammals. Acta Palaeontologica Polonica 42(2), p 201-242

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