Class Mammalia Linnaeus, 1758 - mammals Subclass †Allotheria Marsh, 1880 Order †Multituberculata Cope, 1884 Suborder †Cimolodonta McKenna, 1975 Family †Kogaionidae Rădulescu & Samson, 1996, incertae sedis Genus †Kogaiononᵀ Rădulescu & Samson, 1996 [monotypic] 1 †Kogaionon ungureanui Rădulescu & Samson, 1996