Class Mammalia Linnaeus, 1758 - mammals Subclass †Allotheria Marsh, 1880 Order †Multituberculata Cope, 1884 Suborder †Cimolodonta McKenna, 1975 †Paracimexomys group incertae sedis Genus †Paracimexomysᵀ Archibald, 1982 †Paracimexomys priscusᵀ (Lillegraven, 1969)