Class Mammalia Linnaeus, 1758 - mammals Subclass †Allotheria Marsh, 1880 Order †Multituberculata Cope, 1884 Suborder †"Plagiaulacida" Ameghino, 1889 [paraphyletic] †Paulchoffatiid line Family †Paulchoffatiidae Hahn, 1969 Subfamily †Paulchoffatiinaeᵀ Hahn, 1969 †Taxa based on lower dentition Genus †Xenachoffatia Hahn & Hahn, 1998 [monotypic] †Xenachoffatia oinopion Hahn & Hahn, 1998